Ponkotsu ga Tensei shitara Zongai Saikyou The Invincible Reincarnated Ponkotsu

Synopsis

A bit dumb yet cute girl and a kind-hearted and tolerant girl. Those are the childhood friends of the boy whose peaceful life is turned around after being reborn in another world. Will they be able to survive in another world with only a skill for hitting really hard!? They'll manage somehow...! (Source: Kodansha, translated)