Tensei Kizoku no Isekai Boukenroku: Jichou wo Shiranai Kamigami no Shito

Kazuya Shiina dies while protecting two girls from an attacker and is reborn in a world of swords and magic as Cain von Silford, the third son of a noble family. He keeps his memories, and at age five meets the seven gods who explain his reincarnation and shower him with extraordinary divine blessings.

Cain’s abilities in magic, swordsmanship, and almost everything else quickly become far beyond what a child should possess, but hiding that strength proves harder than having it. Every attempt to act “moderately” ends with another achievement that attracts attention from his family, nobles, and the king. Between adventures and official responsibilities, the gods’ deeper intentions begin to emerge, revealing that the overwhelming power they gave him was never a random gift.