After Reincarnating as a Nobody in Jujutsu Kaisen, My Best Friend Turned Dark

He is Tsukimiya Toru.

Kindness is an illness, salvation a sin. He died at seventeen, yet lives on through the long years of everyone left behind.

He is Hojo Akira.

He plunders the world with greedy eyes, wanting only to take back the person who said "Wait for me" beneath the cherry tree.

He is Wagatsuma Sawabuchi.

He acts out madness as if it were a play and collects his pain like a treasure. The louder he laughs, the hotter the fire burns inside him.

He is Minazuki Koki.

He uses formulas to calculate life and death, but cannot calculate how not to love him.

They were once four boys.

Later, they became a cursed spirit, a curse user, a defector, and the most silent blade at the technical college.

But on the day Toru died, they all became...

An echo.

One person dead, three people living for him.

A long echo that began with cherry blossoms and ended with a blood moon.

[I thought being reborn was a blessing. It turns out it was only so I could die once more.]

[And you told me you were willing to be cursed by me for the rest of your life.]

Before you read:

Everyone is crazy, but even the crazy can love.

Everyone gets stabbed in the heart, but those blades are sugar-coated.

Younger seme x gentle uke, childhood friends in two lifetimes x a rational madman.

And a promise to someone who will never get to celebrate another birthday.

The moonlight once shone upon us.

Then the moonlight died.

We became the moonlight.

[Many new original characters. Happy ending for everyone.]