!!!!SPOILERS!!!!! I have lots of free time. I just noticed these details, the artist must have wanted us to see these if they put these in.
1) Eve appears to be older than 15, my guess is 18-19, since at the beginning we see gozu holding a high school entrance exam book, which means he was around 15 despite being drawn much younger
2) There seems to be 3 more characters that we might get introduced to, their names are kiriki (appears to be female), makidy (appears to be male), ouie (appears to have a bob cut). I think they will be fighting against eve and gozu. Makidy seems to be the weakest of the 3, with kiriki being the strongest.
3) Seems like gozu pressed a button before he "reincarnated" into the world. Maybe at the end of the comic, he will see a game over screen as well?
4) This one kinda boggled my mind. At the end of the 12th chapter (the Christmas special art), the name of the game appears to be ibrogia, but on a frame in the first chapter, on the disc of the game, it says "genniastria" or "Igenniastria"
5) We also see 1.5 pages of the games guide book. The writing isnt tangible, but we can see an image next to the picture of eve. Probably a demonstration of his skills
6)In another frame, we see the gameplay, when the parents tell eve to not stray from the assassin's side. The assassin in the original game appears to be the same guy with the hood on that gozu punched to protect eve. So this time, unlike the original game (as much as we know) the parents hired two assassins - wait, they actually hired 2 assassin's before as well, since in the original game, eve battled two assassins and put a spell on them to make them kill each other. So maybe the reincarnation cycle goes on and on with the assassin's changing?
7) We also see the second assassins face, which might have a reason.
8) We also see the map of the game. In the game, eve appears to have destroyed his home village before he left. That wasn't the case this time, since gozu carried him out of there
9) Also, in a frame where a child, maybe gozu, is holding the game guide book. On the book, there seems to be a picture of 3 graves next to each other. Maybe they're the graves of kiriki, makidy and ouie?They might not be graves, but seem a lot like tombstones.
But that's just a theory. A BL theory
Omg