Otoo returns to Wagnaria once again this time bringing with him a new waitress, Yamada Aoi. Aoi tells a "tragic tale of woe" to which Takanashi responds that she is a liar. Reluctantly he ends up training Aoi in how to be a waitress. As the day progress she tries to assign the various staff members into a fake family structure.

Yamada tells a scary ghost story at the end of work and Mahiru is to scared to go home where she would be by herself. Takanashi invites her over to spend the night at his house, Yamada follows them there, claiming to be too scared even though she was the one who told the story in the first place.

Whilst out shopping for some more cream, Kyōko and Yachiyo end up meeting Otoo's long lost wife, Haruna. As Yachiyo debates whether to tell Kyōko about her, she disappears again. As Yachiyo feels guilty about it, Mahiru learns about Jun's one-sided crush on Yachiyo and starts feeling sorry for him, leading Sōta to believe she has a crush on Jun. With some support from Jun, Yachiyo apologises to Otoo after he returns and cheers up.

Popura and Jun end up catching colds due to Aoi's clumsiness, so Kyōko calls in two of her juniors, Yohei and Mitsuki Mashiba, twin siblings who don't get along. When Kyōko offers to put someone else in charge of looking after Inami, Sōta becomes upset and falls out with Inami, but Inami soon manages to build up the courage to make up with him.

Sōta becomes depressed when he discovers Nazuna has grown as tall as him and has Popura act like his little sister for the day. Mahiru becomes jealous of this and works with Hiroomi to try and get Sōta to call her cute. The next day, Kirio comes to Wagnaria to look for his sister, but finds himself coming into conflict with the men, whilst Hiroomi attempts to keep him and Aoi from meeting each other.

Mahiru finds herself a bit too close to Sōta for comfort when he tries to stop a tower of boxes from falling on her, which leads her to become a bit fearful of him the next day. This turns into a complete freakout after she discovers Sota touching her head whilst she was asleep and stops coming into work. Later, Poplar gets locked in the freezer and initially suspects Jun, but soon finds Aoi just did it accidentally. After Mahiru doesn't show up at work all week, Sōta goes to visit her in Kotori-guise to apologise and exchange phone numbers.

As Popura becomes more aware of the relationships blooming around her, she and Aoi question Otoo about the restaurant's stance on romantic relationships. Later, Minegishi comes to the restaurant to tell Sōta something and gets punched by Mahiru, leading her to feel she hasn't gotten over her androphobia, but Sōta manages to calm her down.