Cool na Megami-sama to Issho ni Sundara, Amayakashisugite Ponkotsu ni Shiteshimatta Ken ni tsuite

One day, Haruto Akihara, a high school student living alone, moves in with his classmate Rei Mikoto, an extremely beautiful girl! Rei, nicknamed the "Goddess of Ice", has a cold attitude towards Haruto, who is devoted to her, but gradually...?