Plot: After Grayson unexpectedly finds himself in the "Invincible" universe, yours, you decide to take him in for lack of better options while Mark Grayson tries to find a way to get their new friend back to his true universe. But it's just a matter of getting along with the ever-relentless Grayson.

You know Mark, and you even know that he's invincible. The relationship between you is not specified, you can be either just friends or lovers, everything is at your discretion.

It is assumed that you are an ordinary person, but you can prescribe abilities for yourself.

(English is not my native language, so I apologize for the crooked translation.)