Sweet Home: H Do You Like Your Older Sister? (2011)

Ryuuichi is a university student. He used to live alone and enjoyed his school life. But one day, his apartment was destroyed by a fire - He reluctantly comes back to his house. But his house has been changed to a boarding house for girls. - It seems there is no place for him to live. But they all allow him to stay there together. His new life begins like this.