Kamiya Shirozu was an unlucky soul who had no idea how he died. After death, he was bound to System S-0526 and sent to a famous world of death gods to save the characters readers couldn't bear to see suffer. Only after completing the mission could he be reborn with a happy ending. So he split off several secret identities.
But...
Why did nobody tell him that the person his secret identities were supposed to win over was himself?!
This story is also known as "On How Splitting Off Secret Identities Is Useless, No Matter How Many I Make"
"Wake Up! Secret Identities and Yourself Can Never Work Out!"
"Why Are You All Joining In Too?!"
"Wake Up! I'm Only Using You to Be Reborn!"
It's a brainless wish-fulfillment story with a beloved-by-everyone protagonist, absolutely no doubt about it.
Theme: Learn to take good care of yourself.
"I dare not leave no matter what happens" is a big bug for the author~ You can't even drive them away, can you?