After transmigrating into the Hokage world, he gets a System. Before he can even celebrate,
"Binding error detected. Unbinding... Compensation talent: Kekkei Fusion."
The System is gone, leaving him with just one talent as his golden finger.
Sharingan, Byakugan, Shikotsumyaku, Ice Release, Lava Release, Dust Release... He can fuse all Kekkei Genkai without side effects, and even combine them to evolve further.
And so, Konoha gains a silver-haired boy with hair down to his waist, beautiful enough to be mistaken for a girl.
Hoshino Rin touches his waist-length silver hair and smiles.
"I'm not a good person."
"But I will be the strongest."
