Akatsuki Ousawa

Akatsuki Ousawa is the main protagonist of the anime and manga series, Hagure Yuusha no Estetica. When he was summoned to the dimension known as Alayzard, Akatsuki defeats the demon king, Galious, saving Alayzard. With his dying breath, Galious begs Akatsuki to bring his daughter, Miu to his world. Akatsuki obliged and introduced Miu as his little sister. Despite the fact Akatsuki killed her father and the fact that Akatsuki is a pervert, Miu eventually falls in love with him.