Ms. Oshige decides to live in an apartment that's close to Mitsuki's home. She calls Mitsuki, Takuto, Meroko, and Dr. Wakaoji over to help her move in. But, when Ms. Tanaka sees Wakaoji and Oshige together, she takes it the wrong way and thinks that Oshige is Wakaoji's fiancée, so Tanaka challenges Oshige to see who is more suited to being Dr. Wakaoji's wife.