Tensei Kizoku no Isekai Boukenroku ~Jichou wo Shiranai Kamigami no Shito
Our protagonist, Shiina Kazuya, who was killed by a stranger while trying to protect the little sister of a childhood friend, was reincarnated as Cain Von Silford, the third son of an aristocrat. Cain was raised by gods who didn't know how to control themselves, the upper echelons of royalty, and girls who were manipulative. This is a classic fantasy about a young man who is a little two-faced, a little clumsy, and careless. With a lot of divine blessings from the gods, he overcomes any challenge while hiding his unbelievable status.