While the battle training from other Teams were happening, Luar was silently thinking about the fifteen years that he lived in this world, reflecting about the changes.
In the original reality, there isn't a Doctor that awaken your quirk, it awaken naturally, Deku would learn to control 5% only after training with the short dude, Gran Torino, Kacchan would be much agressive than now, there isn't a real test for the students with a recommendation letter anymore, though only high ranking heroes like the Top 10 heroes can recommend.
His bloodlines is also different, no, it's not like this, Luar temporary weakness, his Tail, was removed and will only grow after going to a stronger world like Dragon Ball world, his Mangekyou Sharingan was also supposed to be awakened at the moment his quirk was awakened, not to mention that he don't have access to the Byakugan for some reason but Luar isn't really worried about this as the Supreme System said that his Ōtsutsuki will awaken completely when he arrives at the Naruto World, the same goes to his Primordial Saiyan God bloodline, but at the DB World.
Another thing that the Supreme System explained to him is that while in DB World, nine thousand BP may be able to destroy a small planet like earth, in Naruto world, it may need much more, a exemple, one million, of course, someone that can per example, summon Meteors like Madara can possibly destroy the world, using multiple meteors, but he don't have enough amount of chakra.
The conclusion is that basically, the Supreme Being created a world equal to BKNH but changed many things such as the recommendation test, quirk awakening, etc.
Luar is currently thinking that he should stay at BKNH world for some time and after the U.A Sports Festival, he will revenge himself with Muscular and leave this world with his parents, of course, Luar won't reveal anything about his system, reincarnation or being the sucessor of the Supreme Being.
-Supreme Ancestal Magic: Flashback-
Some days after Luar ''discovered'' about Deku quirk being One For all, he decided that having All Might to train his friend even more and help him control enough for Deku to don't break himself, Luar was currently waiting All Might at the beach.
''Young Luar, why did you called me today? Something happened?'' Asked All Might, at his weak and thin form
Luar looked at All Might and said to him ''All Might, you were injured heavily by All For One and cannot be a hero for much time, I know that giving Deku the One For All quirk made you even weaker than before, I believe that your powers will only weaken with time, right?'' All Might nodded, then, he continued
''I don't want my best friend to lose his idol and goal, I can heal you, yes, completely, it will even make you stronger, but nothing is without a price. If you can make Deku control 10% of One For All before the U.A Sports Festival, I will cure you'' Luar said to All Might, completely shocking him, but there was hope in his heart.
''Are you talking the truth, Young Luar? If so, I guarantee you that Young Midoriya will be able to control 10% of One For All before the Sports Festival, I just ask you one thing, why before the Sports Festivel, perhaps, you won't be here after it?'' All Might said the first sentence still shocked but at the second sentence, his voice had some doubt
''You will know when the time comes, now, I will return to my training routine'' Saying this, Luar disappeared.
-Supreme Ancestral Magic: Present-
Luar is currently training, his way of training isn't complicated, in fact, it's basically fighting with villains, reducing his own BP to the same as them, he don't fight agaisnt villains that commit robbery, but the ones that kill and do these kind of things, the villains that kill have most of the times a good amount of fighting experience and killing intent, just like Stain killing intent was so huge that scared Deku, Iida, Todoroki and some heroes around.
Of course, Luar always kill these type of villains, he isn't a truly kind person like Goku that even after everything that Freeza did, still wanted to spare him.
Anyway, after finishing his ''training'', Luar began to think if he should take Deku with him to other worlds, at the start, he don't truly considered Deku as a friend, but as years passed, they became best friends.
Bringing his parents is certain, the Supreme System said that it is possible to give bloodlines to them as long it is Uchiha, Uzumaki, Senju or Hyuuga, as for top-notch bloodlines like Otsutsuki, Primordial Saiyan, etc, it's impossible, also, they can't have more than one bloodline.
Soon, Night quickly came as the full moon rised proudly at the sky, Luar was observing it in his bed while thinking 'Luckily, my tail won't appear until I arrives at the DB World, it would be a pity if I transformed into a Oozaru and destroyed a pretty house like mine and the city population' then, his eyes began to blink slowly until he finally began to sleep.