Taking a look into the Past

I need ideas for the world where the MC will first start, please don't make it an overpowered verse, even cartoons/Manga will be fine (If I know them) just know what I'm doing is basically destroying the plot and creating a new one (A little).

...

"So basically, you're telling me that when my phone shone a bright light, it was you who appeared, trying to merge our souls or essences or whatever it was, in the process also killing my former body?" Tevin said somewhat speechlessly.

[Yes, host, I'm truly sorry for such an unprecedented accident happening to you, but I promise and assure you that I will never leave you... as that is impossible without killing both of us, that is. Hahaha.]

IMIS gave her apologies seriously but was trying to lighten the mood with a small joke, hoping Tevin wouldn't be too depressed or angry.

...

(IMIS will now be called a she, as it took on the personality of a female because of Tevin's preference for females.)

IMIS... no, even before 'it' was named as such, her sentience was formed in the Overvoid a very long time ago that she even witnessed most of the infinite number of dimensions being created, destroyed, or even being merged to create something miraculous. During all this time, IMIS was all alone; she had no purpose unlike the other dimensions, well, other than gathering and absorbing the bleeding energies of the infinite dimensions.

IMIS observed the infinite dimensions, seeing that within them, life was abundant; everyone had a purpose, and as a sentient being, she was not without emotions.

She wanted to be like the other dimensions but in her own unique way. She was determined to establish a purpose for herself. She gathered all the energy that composed what she was and then separated a minuscule fragment of her essence to travel through the myriad dimensions to find a host, a vessel where she would find purpose.

That minuscule fragment of IMIS traveled beyond what numbers could describe. The distance it traveled was beyond astronomical, and the amount of dimensions it went through was no joke. She surveyed and analyzed beings of all kinds.

There were beings resembling humans with animal features; there were humans themselves, and there were dimensions that she went through where there is only one sentence that could describe its inhabitants: 'Abominations of Madness.'

The number of species in the infinite dimensions was enumerable and unable to be counted even if one was an immortal and given time.

But on the journey through this specific dimension, she chanced upon a planet that seemed to have humans as its dominant species. Seeing it as a next world to be searched, the fragment went head first toward a large landmass that was in the upper western hemisphere.

IMIS went around doing what she normally would, as this planet wasn't all that special or different from other planets or dimensions she had visited. It even seemed primitive compared to the last few planets she'd been to.

While scanning the individuals on the planet, IMIS learned that this planet's name was Earth. She realized that this place was quite popular, as almost every dimension has a planet called Earth or has a name synonymous with Earth, such as Terra, Blue Pole star, Blue Star, etc.

She analyzed individuals all over the Earth by any means possible with a speed faster than light itself. She started in Canada, to Greenland, to Europe, to Africa, and others, then finally, she ended up in the Caribbean where she had finally found what she was looking for.

"THE PERFECT VESSEL" IMIS was elated with joy. She had been searching relentlessly and analyzing the individuals of their respective dimensions to find some sort of compatibility, but it seemed that there was no such person.

But she still had hope; the amount of Dimensions in the Overvoid was nigh infinite (for only the OVERVOID was INFINITE). She just had to search some more, and she would succeed, even if it took her a Trillion human years.

And she finally found it, her purpose, Tevin Scott, a 22-year-old man from the Jamaican Caribbean island. Tevin became an orphan at the age of 15 because his mother developed lung cancer due to her smoking addiction. She died, leaving Tevin alone in the world with no father, sibling, or relative to turn to. In addition, the orphanage system of the country wasn't good.

He did side jobs to send himself to high school so that he could get an education to get somewhere in life. It worked out in a way that he could have never imagined. Tevin and his best friend started writing novels and posting them online to garner attention so people could support them financially as freelance authors.

Both Tevin and his friend were anime and novel enthusiasts. They would meet every weekend to binge different anime genres and to scout potential waifus, as they were 'Men of Culture.'

They would also play CODM together on a daily basis so that they could compete with each other to see who would get the most kills in each match, or they would 1v1 each other to see who had the better sniper skills. They would watch YouTubers such as 'IFerg' or 'RushSenpai' to learn from them so they could improve their skills.

IMIS reviewed all of Tevin's memories in the blink of an eye and found her host somewhat funny and strange.

IMIS being satisfied and pleased that she found the purpose she had been looking for started to merge their essences, but she realized too late that Tevin's body couldn't handle the stress of the merging process and died.

She had no other option but to recreate a body for him, but it couldn't be in this dimension as the Overvoid has strong restrictions on such normal dimensions which had little to no supernatural events, other than a few naturally strong species inhabiting them.

But she carefully considered what dimension would best fit Tevin, and from his memories, she found the best option. A dimension where multiple realities interconnect in a special way.

She created an identity for Tevin and then formed his body, but her work wasn't finished as she wanted herself and Tevin to become 'ONE.' She took a deeper dive into Tevin's Essence to unearth his deepest desire, what she found was 'To never run out of items in my inventory.'

She took that desire and began to mold her core to embody that desire. She took inspiration from the games Tevin played and became what Tevin is seeing now, 'A System' like one of the novel protagonists.

...

Back to the present.

"So that's how it is. I'm surprised and shocked that I was chosen out of the trillions of beings in the different dimensions, and I'm not angry at you for what you have done. Being so lonely for so long without a purpose or anyone to talk to must have been agonizing. It's just a shame that I didn't get the chance to say goodbye to Zackery; he must be pissed that I died. Haha."

[Thank you, Tevin; that means a lot to me. Loneliness is a condition worse than death; it is a torture within itself that would drive the most antisocial of us crazy, and I was no exception. As for your friend, I apologize for that as well, as there is nothing I can do about that.]

"Water under the bridge. I now just hope to live a fulfilling life in this new world you brought me to, even with its craziness, and I'm sure by the end of the day, me and you will be the best of friends."

[Thank you; that would be awesome!]

"So, IMIS, can you tell me what you can do?" Tevin was super excited after overcoming his

Overcoming his turbulent emotions from dying and being transmigrated, he wanted to know the abilities IMIS possessed and which she gave him access to.

[Host, I possess...]

- End Of Chapter, To be Continued -