Ruthless Through the Ninja World: Starting Adopted by the Second Generation!

Description

[No system, no mindless play, no female lead, daily, Uchiha, pure Naruto story] In the fifth year at Konoha, under the unreasonable demands of elder brother Hashirama, Tobirama is forced to adopt a young Uchiha demon, unaware this child would change his life. Ren Ye transmigrates to Uchiha but is adopted by evil Tobirama. Fortunately, the old man doesn't cross major lines... One night in the lab, Tobirama eyes the unconscious Ren Ye, calling him the perfect experiment... Years later, Ren Ye discovers secrets, exclaiming at harsh treatment.