Hokage: I Cultivate Golden Cores in Konoha

[Transmigrate + Hokage + One Heroine + Slow-Burn Growth]

I transmigrated into the son of a fruit shop owner in Konoha, in the same year as Naruto Uzumaki. The Konoha 12 shone with dazzling brilliance, while I had no Kekkei Genkai, no powerful family backing, and no ancestral secrets. All I had was a fragmentary dream that opened the gate to immortality. No need to panic: I still had the advantage. Watch me reach the summit and become the strongest!!