Kono ie de kimi to manga

Kono Ie de Kimi to summary:

From Shinnen: Tachibana Itsuka has always planned to live on her own once she became a high school student. On the day she's supposed to move into an apartment building, she finds it burnt and unfit for living. She's forced to live in the house of the landlady's son, along with two other women, and starting day one, none of them get along at all.