The universe encompasses the entire cosmos and its contents. A universe also has several different levels.
The first level is the world itself.
The second level is the empty space commonly referred to as the 'void', but angels call it 'cosmic'. This level is also where the 'observers' reside, who are responsible for watching over the world within that universe.
Next is the level of the multiverse. This level is something that may or may not exist because a universe may not necessarily have branching worlds.
The multiverse refers to a universe that has branching worlds with different storylines from its original world.
Most multiverses usually involve something called time travel because time is the only thing that can turn a universe into a multiverse.
However, sometimes universes that do not have knowledge of time travel can also become multiverses. This is likely related to beings that are not bound by space and time.
It should be noted that 'outer gods' and 'guiding angels' are just two of the thousands of beings like them. There are many beings unrestricted by space and time roaming outside the universe. Some of them have the intelligence to enter a universe and disrupt it, while others may just want to experience life out of curiosity.
The next level after the multiverse is the omniverse. This level encompasses all universes and multiverses that exist.
It has no boundaries or concept of time. It is truly an endless emptiness that no living being can cross.
When an individual from a universe tries to penetrate their own universe, they will vanish into the endless void known as 'the end'.
The end of all ends, the end of a beginning that never truly had a beginning. There is only an end and the end of an end, that is 'the end'.
Beyond the omniverse, which contains universes and multiverses surrounded by 'the end', lies the outerverse.
The outerverse is the final level where Heaven and Hell reside. Here, you can meet angels, but not in a living state.
No body can leave its own universe. Only the core of living beings can exit.
The core is the essence of an individual. Both beings within a universe and beings not bound by space and time have a core within them.
The core is their soul. The core is their memory. Every being has a core, and their core is their true self.
Usually, the observers gather the cores of living beings and bring them to the outerverse for judgment.
However, this only applies to living beings within the universe or multiverse.
Beings not bound by space and time have the freedom to roam or stay in 'the end'. Most of them have different forms and lack reason or intelligence. Many of them simply 'exist' without doing anything except sleeping and playing in the world of dreams.
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Joe Walker sat silently after listening to Sebastian's explanation.
"Ugh... My head hurts so much. I hate this! Why is it so complicated!"
"Mr. Joe, it's just that you're lazy to think."
"That's true! You're right! I hate thinking hard! I hate learning! But I want to know... But I'm bored!"
"This is not learning! This is something you must know! You are now an 'outer god', you should remember that!"
"Heh, 'outer god'? That's right, you said it yourself. But... From the beginning... I was never explained why I became an 'outer god'! I have no purpose! I have no tasks! I am free! I am too free!" Joe Walker smiled, feeling both happy and strange at the same time.
"Do you have a purpose now, right? To change the past of the world where you are now."
"That's my goal, not the purpose of my existence. Will you tell it to me? Who am I really? Why did I become an outer god? Why did my memories disappear? What is my task as an 'outer god'? And... Why was I chosen to be an 'outer god'?"
"...," Sebastian fell silent at that moment.
"Come on, say it, I want to hear it again. I already know what you're going to tell me, Sebastian."
"It's... still a secret."
Joe Walker smiled and said, "a secret... Why a secret? Why are you keeping it from me? Someone who should guide by providing the information they want. Why should a 'guiding angel' like you keep something secret from the one you guide?"
"That's because..."
"Enough, you're going to say 'secret' again," Joe Walker sighed and continued, "forget about it, you already promised me, right?"
Sebastian sighed and said, "sigh, alright... I promise. From the beginning, I intended to help you, not to make you suffer."
"Thank you, I trust you. Because there's no one else I can trust but you, Sebastian."
Sebastian was slightly surprised by that, "do you really trust me?"
"Of course, are you lying to me?"
"Of course not!"
"Then what's the problem? Besides, there's nothing I can do to you if you choose to hide something from me. Because there's no other choice, I trust you."
"You speak as if you don't trust me at all."
"It's just mental preparation. Because if I trust you outright, I'm afraid the pain will be too much."
"I won't torture you! Besides, you can't be destroyed."
"I'm not talking about physical pain, but emotional pain. You could set a trap where I can never escape."
"What kind of trap is that?"
"I don't know, I'm just talking nonsense. Ehehe..."
"You're really strange, Mr. Joe..."
"Is that so? I think you're stranger! No, maybe the word 'mysterious' suits you better."
"Mysterious? Me?"
"Mr.Strange and Mr.mysterious! The unbeatable duo who will conquer the entire world! Oh... No! The entire universe!" Joe Walker looked excited.
"Ahahaha...," Sebastian laughed at the absurdity. Then he said, "you're really strange."
Joe Walker suddenly remembered something, "ah, I remember! I want to thank you too."
"For what?"
"You're the one who gave me my 'outer god' authority, right? Without you, I wouldn't have all those abilities. That's why I want to thank you."
"What do you mean?"
"Eh? You said you held my 'outer god' authority, and you already gave it to me at that time, right?"
"Yes, you're right, but the authority I meant was permission for you to enter various universes. From the beginning, that authority was just permission. Because without it, you couldn't visit a universe. I never give you abilities, Mr.joe, what's are you talking about?"
"Eh?"
"Eh?"