Ema's father remarries and she suddenly finds herself with thirteen new brothers. Today, she's moving in with them and meeting them all for the first time, so she's in for quite a day.
After spending a lot of time alone with her father away overseas for work all the time, Ema is enjoying being part of a big family. But she also has some interesting run-ins with Futo, the family's pop star with an attitude.
Futo is in a new commercial, leading the family to begin plans for an oversees trip during summer vacation in order for Ema and Yusuke to take a break from exams.
It's been a long time since Subaru left the mansion and haven't contacted anyone yet Ema is worried about him if he is having some problems in living alone, a moment Masaomi comes and tells Ema that they have just received a call from Subaru he is alright and tells her not to worry because he is not the only family member who is leaving.
