Ichibe after receiving the report that Senjumaru and Keiko sent decided to come to Soul society to come and look at Ichigo and his friends himself. Keiko in his report made Ichigo look like the next Soul King himself, stating that if Ichigo reaches his full potential he can take place of Soul King himself and bring a balance to the worlds.
Meanwhile, Byakuya and Hitsugaya reported back on the condition of Ichigo's family starting with his father Isshin who was suspected to be an exiled Shinigami while his sister also had high Reiatsu within their souls making them able to feel the presence of Hollows. Isshin was the formal commander of division 10 and captain of Hitsugaya when he was within the division as a normal member itself, thus leading Hitsugaya to recognize Isshin immediately. Keiko had sent both Hitsugaya and Byakuya with specific instructions to only observe and report back, not to personally take any action until the Human world is any kind of danger. Thus after collecting all the information, both reported back to Yamamoto about Ichigo's family and classmates.
On another front, the research regarding the Gagai artificial body of Arrancar and Vasto Lorde completed, and his whole army was mixed in within the Human World where the formally exiled captains and other members of Aizen's failed experiments of Hollowfication which were now known as Visored lived. Using Thousands of Hollows and Shinigami souls, Keiko has powered his Hogyoku to make a more perfect form out of his Arrancar and Vasto Lorde. There were around 20 Arrancar who were above or at least at Yamamoto's power level while 50 of Vasto Lorde just bit less powerful them him. He ordered his Vasto Lorde's to go and capture Visored for experiment purposes.
Bounts which he had captured were taken into his dimension, he began his experimentation by ripping on to the soul of one of the member Sawatari who's doll was Baura, who's power mainly focused on Space which was completely useless for Keiko who had Kumai which was pretty much a more stronger version of this ability. Keiko first took Sawatari to Hueco Mundo out layer and let him there to observe from a faraway distance, Bounts due to having High Reiatsu within Human form were mostly hunted down by Hollows all over the world thus Sawatari quickly attracted all the small weak and few middle-range powered Hollows to himself.
Sawatari's Reiatsu slowly degraded while fighting, He lost an arm and a lot of blood but the wave of Hollows didn't stop, weakening and injuring him over and over and finally killing him. Seeing this Keiko was disappointed and decided to use another Bount this time he didn't throw the bount into Hueco Mendo but used one of his Hogyoku to experiment with him, He slowly using the same method as Arrancar's creation started Upgrading them giving them power of Hollow in the beginning, but experiment failed to make the bount a complete Hollow and erasing his Bount nature leading to Keiko losing Ryo Utagawa one of his another Bount who Keiko didn't kill but decided to use it as distraction if deemed necessary in the future, same happened with Shinigami power which this time simply destroyed the Reiatsu network of the Bount burning their very soul to ashes thus ending Mabashi. Leaving Keiko with 8 Bounts.
Keiko took out another one and ripped out his soul out to understand it. Research and comparison with other types of souls such as humans, Shinigami, and Hollow developed a theory regarding the concept of the soul's consumption and immortality. After more understanding behind the concept, Keiko decided to try consuming one himself. The soul which were brought into the soul society right after their death were purest and freshest without any identify memory or nature thus Keiko decided to raid those souls.
Keiko first waited for the soul to arrive before taking over it with his Reiatsu erasing it from the system of Reincarnation which Soul kings had going on for himself. Before taking it himself, Keiko feeds it to Bounts under him, this time the test subject was Ugaki who in the storyline died pathetically by his doll. The soul changed the very nature of Ugaki himself giving him a Reiatsu of the level of Lieutient to lower class captain from someone who needed to be constantly fed, Interested in the Changes Keiko stopped experimenting and started the starvation game with Ugaki. Usually due to the low-level constant leak of Reiatsu for Bounts forced them to feed to sustain their powers. Keiko wanted to see how much power would Ugaki lose over time and will be the regular soul of a living Human which was impure due to human nature and such.
As Keiko was waiting for the results he turned his attention toward another thing, While Ichibe along with Oetsu decided to come to Soul society he decided to visit Soul king himself. Turning his brain completely off, activating Hope mode which was Hope who has been with his since the beginning acting like him.
Keiko arrived in front of Soul King who had his eyes close within the crystal
Keiko in front of Soul King: I'm planning on leaving for a while, I have learned everything I can from this world.
Soul King: I see, but still don't have your Zanpakuto. Is their some assistance you need from me regarding this.
Keiko: Thanks but I have decided to collect a few Items myself before making one myself.
Soul King: Okay, Few things I should tell you is that to go to the next world you will need to defeat the strongest person who is not a lesser god in the world.
Keiko: I'm already more powerful then Yamamoto and Ichibe while Yhwach your son is still sealed so, I think I can already go.
Soul King: Yes you're stronger than them but still you can't leave without defeating Yhwach.This is your mission in this world.
Keiko: If I remember correctly, I'm the God of Destruction's successor while you're just a subordinate. So I don't think you can give me missions or tell me what to do.
Soul King: Yes that's correct but this was something which was decided by the primal gods themself along with your pathway into the journey of divinity.
Keiko: I think you're forgetting who's subordinate you are. My actions won't be controlled by anyone, and certainly not by you or those Primal gods.
Soul King: I'm merely stating what I was told. Slay Yhwach and you can leave.
Keiko: Are you threatening me??
Soul King: No, I'm just stating the facts here.
Keiko: I thought you would have understood a little by me in the past 600 years but it seems, I was wrong. I would rather help Yhwach kill you and stay in this world instead of jumping the hops for you.
Soul King with a little smile on his face: Do you think you both can kill me?
Keiko: We both know, you won't be trapped in this crystal not because you want too but to prevent the world laws from getting to you. No, I don't think I and Yhwach both combined will be able to kill you but tell me this, will you forever be able to keep me here? From what I understand those Primal gods of yours need something from me which is why I'm here.
Soul King whose eyes were still closed weren't able to see that Keiko who was standing in front of him, was smiling like crazy. Keiko's eyes started changing from normal to EMS to Rinnegan. Keiko decided to use Human Path onto Soul King. While he wasn't sure if this will kill the soul king but he was certain he will be able to read his mind.
Soul King who was unprepared for the mental attack could not protect himself completely and Keiko started watching Soul King's memories.
In the beginning, the Soul King was one of the gods created to serve as a link between the world he had nothing to do with Souls or anything like that, but it all changed one day when one of his fellow lower gods introduced the method of increasing one's powers and increase their boundaries. Soul King being Sneaky ran away from the lower gods court and stumble upon one of the low tier worlds in which energy was concentrated and without disruption decided to use his specialty and made the low tier world trap into space lock thus hiding himself and the world. He first started with the experimentation of the pure soul which he found in the world. Using his knowledge and divinity he created Hollows. His plan was simple, introduce the big bad villain to the world than save it and be treated like a god among man.
Thus the introduction of Hollow, in the first few years everything went perfectly with his plan but he soon realized that the space lock over the world was slowly failing the world laws were started to bind him making him weaker and weaker turning him into a normal Human, not wanting to lose his power Soul King combined all the Hollows which he had created making the Grand Menos and killed it revealing himself to the entire world as the knight in the shining armor.
But he in his plan didn't consider one thing the nature of a human. Some people saw him as a source of power while many started fearing him afraid of his power thinking of various ways to destroy him, and one day he finally saw the world itself retaliate against him but creating the first Quincy itself, Quincy had the power to destroy the very soul of a creature itself thus was also being able to harm the now world laws weakened Soul King.
In constant fear of his life and losing his power Soul king decided to kill the first Quincy before he could even understand the very nature of his power and come after him. For his, he hatched another plan he selected 5 of his Human followers and had the Quincy killed but the world destroyed his plan again by producing more entities that could somewhat harm or hurt him. Soul King filled with Parinoa decided to do what his fellow lesser god have told him, feeding on souls to gain power and prolong his powers.
Do this he created his legacy as the savior and used the 5 human's under him seal him in a crystal made out of the mass form of power which he extracted from the body of the First ever Quincy which world law has created, thus making the crystal seem natural and preventing world laws from imposing more, restrictions onto him.
Thus creating, the perfect scenario from him, he feeds on the memories and deed of the people when their soul transmitted from one world he had created to another. Without actually destroying and violating the world laws itself which became more and more rigid after some time. His son Yhwach was created with the intent of his will of processing a shadow for himself to move around and control the world while he becomes powerful with each cycle of reincarnation. But world laws destroyed Yhwach's will and made him a person on his own, without actually removing all the memories of his wills, thus began the struggle between the trapped Soul King and Yhwach who was part of himself over the control of all the power. Soul King, unlike Yhwach, wasn't able to come into the real world and fight he had to remain in the special mass power crystal. Yhwach knowing this wanted to disintegrate the crystal to let the world laws deal with Soul King while he will absorb all his powers making him a true god.
Soul king using his pawns such as Shinigami and souls which worshipped and followed him to destroy Yhwach and ending his enemy once for all but Shinigami were useless Yhwach was too powerful for everyone thus, Soul King decided to cut off his own hands and legs to make a part of himself come into the world and deal with him.
Yhwach with all the memories of the will knew about everything regarding Soul King thus, was before hand-prepared for such things. Soul King along with Shinigami such as Yamamoto and Ichibe among others with his parts attacked Yhwach. Yhwach knowing he can't make alone decided to take a step back and ran away with half of his powers seal while making everyone believe he is dead. But Soul King was still about to feel his presence into the world was very cautious and decided to hide his parts for later while he slowly feeds on everyone.
But everything changed, One day space in front of Soul king cracked and came to a voice telling him that a child will be sent to him who he has to keep busy for a while until further instructions are sent. The voice also told him to make the child believe he the soul king was his ally and make the child relay on him. In return, the world laws imposed on him will be uplifted and he will be given the chance to join back in with the lesser gods court. And lastly that the person sent to him believes himself to be the successor of God of destruction thus to pretend to be a subordinate of the same making his task easier.
Soul king was thrilled to no limits hearing this, he knew the voice he heard was from one of the higher gods decided to accept the deal and thus started his plan with Keiko. He closely observed Keiko and found him to be very ordinary in teams of powers and such, so he multiple times tried to probe into the soul and read the memories but felt some powerful forces protecting the soul making it impossible for him to understand everything about Keiko thus after some thinking he started manipulating him, he first gave him everything but then started using Ichibe as a medium to deal with his enemy Yhwach once for all using Keiko. He sent Keiko to the soul society and dragged him into the mess.
But today, when Soul King heard Keiko wanted to leave in anger, decided to use primal gods but saw that Keiko didn't even give them any face thus decided to use the reason of binding him and controlling him stating that he will first need to take care of Yhwach if he wants to leave thus hitting 2 birds with one stone, making Keiko stay here and ending Yhwach threat once for all.
Keiko also saw other memories of lesser gods and information about the gods in general.
From what Soul king had in his memories, there were 2 primal gods. God of Chaos and Goddess of Creation. Everyone else was just beings which came into being when worlds were builds. God of destruction was just a middle-tier god of a higher tier than the Soul king himself. Keiko wasn't any way related to him. The god resided in the world of Dragon ball or so Keiko guesses and was known as one of the generals under God of Chaos.
Keiko after reading all the memories show that the soul king's soul was sucked into much lesser size due to the use of Human path. Now that he knew the exact situation of what was going on Keiko decided to play with the world itself because now this world was nothing but a joke to him. He left soul king alone, soul king opened his eyes from feeling the powers he had accumulated for more than 2000 years being halved. Keiko changed his eyes from Rinnegan to EMS and used Kotoamatsukami on the now eye open Soul king started changing his memories just a little bit. Soul King now will make Keiko in charge of the entire soul society while also making his parts which he had hidden away come out to Keiko.
Keiko's intent with the Parts was such that he wanted to understand the soul of a lesser god himself to remove whatever was imprinted onto his soul. He could use the same method used by Hollows to divide their souls into 2 parts. He would part the imprinted soul part and leave it alone thus removing all influence they had over him.
Keiko decided to take it once for all, hatched a new plan. A good one this time.
New Plan: Bleach World
Titled: Destroy Bleach world.
For he won't leave a single being alone till he finds Asuna.