Koisuru Hotaru To Kurashiteru

He's a little difficult to understand, but he's kind. Due to a renovation, high school student, Mayama Suzu, has to freeload at the home of one of her mom's friends. However, the family's son is actually her classmate, Saeki Hotaru, who's a total downer. Thus begins their sudden co-habitation due to special circumstances, all the while keeping it a secret at school. She had always wanted to close the distance, but living together under one roof is the distance of love…