The Fourth Calamity Player's Road to Narcissism

[I admit I originally wanted to write this just because I wanted to see selfcest, thank you]

That's it.

Chaoyue Shangge is a player who really knows how to have fun.

Specifically, in a full-dive game, he can use his mental power to run n accounts at once, and he especially, especially likes... using accounts he has created himself.

He also especially likes taking future versions of the original characters, modified to his liking, into their original worlds to make an impression on the original characters.

The current secret identity setups are:

Bourbon Furuya Rei, who went completely off track and became part of the Black Organization because of tiny changes to the world's timeline (27-year-old Underworld Zero) x 22-year-old Police Academy Furuya Rei (Red Zero)

The unparalleled ninja teacher Gojo, who saved people in Naruto's world and even saw the tragic plot that Jujutsu Kaisen was supposed to have, is all attack and no defense (285) x 15-year-old Tokyo Jujutsu High Gojo (155)

The cult leader Geto, whose worldview shattered in childhood in Meteor City, who built a vast church, understands people's minds, emotions, and morality extremely well, joined the Phantom Troupe, and like his friend Chrollo secretly read the Jujutsu Kaisen script x 15-year-old Tokyo Jujutsu High Geto

The 180-centimeter Arahabaki onmyoji Chuuya (22-year-old Onmyoji Chuuya), who has stayed at both the Armed Detective Agency and the Port Mafia, attended a normal school and made it to Tokyo University, and owns an entire sword citadel full of swords x 15-year-old Yokohama middle school Chuuya (the Time Government deserves credit for making this Chuuya so tall, since gathering faith and making it part of the requirements for becoming an onmyoji helped him grow)

The truly black, black-hearted Dazai who took part in the Holy Grail War and was stained by the evils of this world (22-year-old Pure Black Dazai) x 15-year-old Dazai who hasn't completely turned dark yet

(The number of people he's dating keeps growing.)

When all of the player's secret identities turn into permanent bodies because their partners trust and love them so much...

What will the player do?

PS: The secret identities are just secret identities. In the end, they simply become real bodies. The person in control is still the protagonist. The protagonist is the one who puts in the time and effort to act, show affection, and receive affection. Don't come telling me that the protagonist is some controller manipulating the consciousness of his secret identities. That's nonsense. The secret identities don't have consciousness of their own. It's all the protagonist! The protagonist is an acting god!

PPS: Everyone's feelings are one-sided, and the number keeps growing. The ending is open. The extra chapters will be decided by reader votes, whichever pairing gets the most. (To be fair, JJ doesn't allow multiple partners. What a shame [disappointed face])

Theme: I started this book just to see selfcest (actually, it's about mutual salvation and trust).