I believe that you will be happy. The chapter begins with a nurse asking Motomiya if he’s fine. He replies that he is in pain because he misses Yuzuno (the nurse). He adds that Yuzuno is not healing him enough in hospital and suggests that they have a date outself. Yuzuno says she has a boyfriend and tells him to stop fooling around.
Yuzuno and Motomiya were high school friends. They also live near each other and one day, Motomiya saw Yuzuno crying. Since then, Motomiya has been seeing Yuzuno as more than a friend. Yuzuno is saying that Motomiya i idiot for being admitted to her hospital. Motomiya says thanks for attending to him and adds that it’s the first date outside. Yuzuno retortd says she has to go for her part-time job. It seems that Yuzuno is hard up for money and doesn't want to say the reason. Motomiya follows her to her workplace; which is a hostess club. He sits in as her customer. Motomiya got drunk and Yuzuno took him back. On the way home, Yuzuno reveals that her boyfriend’s mother is hospitalized but she has not met her, and doesn't know which hospital she’s in. Motomiya asks her doesn't she feel cheated? Yuzuno laughd says yes, maybe. But she wants to believe.
Motomiya went to look for Yuzuno’s boyfriend and asks him to break off with Yuzuno because he doesn't want her to be upset anymore. Motomiya confesses his love for Yuzuno and that his motive in life is to make her laugh, ever since he saw her crying that day. They got married and gave birth to Mao. Motomiya works very hard every day for the sake of the family and he failed to notice Yuzuno’s unhappiness.
One day near Christmas, Motomiya returned home early, bringing back a teddy bear for Mao. Shockingly, he caught Yuzuno in bed with her ex-boyfriend. Yuzuno says that the relationship started when Motomiya neglected her and Mao. Motomiya then sarcastically asks if Mao is his daughter, to which Yuzuno exclaims “of course”. Soon, Motomiya doesn't want to go home. He stays over at a woman’s place. Mao starts saying that her father is bad because he made her mother unhappy and is seldom at home. At this time, Motomiya steps into the house and reprimands Yuzuno for teaching Mao to say bad things about the father. Mao is frightened by Motomiya’s fierce glance and starts wailing. At this time, Yuzuno took her belongingd left the house. Motomiya is thinking how Yuzuno never repents, but he had once been so in love with her. Mao is pitifully deserted by her mother. The grown up Mao wonders if her mother has ever blamed her. She was actually shocked to see her mother walking out of the house but she also thought that her mother will be happier without her.
Oda came to Motomiya’s home to look up Mao. Motomiya asked if he is her boyfriend and he said no embarrassingly, then Motomiya says Oda must be in love with Mao. He passed Oda a paper consisting of Mao’s current address (Hiro’s home) and told him to take care of her. After Oda left the house, Motomiya’s girlfriend commented that Motomiya talked about Mao in his sleep again…
Hiro is returning home early from work and he thinks to himself that there should be no problems going for the fireworks festival in the current work situation. He is also disturbed by the thought that Mao seems to be avoiding Sugimoto but she has never hidden anything from him before.
Oda sees entering the house and he is shocked and furious as Motomiya had said Mao is living in the house. Hiro tells him that Mao has been hurt and requests him for him to leave.
Hiro enters the house and Mao asks him to protect her from Daiki. Daiki has been hassling her to play (video game) with him but Mao needs to prepare dinner.
Hiro changes the topic and says that he is able to go to the fireworks festival. He says he will dig out his mum’s yukata for Mao. Mao is hesitant but Hiro assures her that the yukata will be happy to be worn by her. Hiro pinches her nose and recalls what he had said to Oda earlier i.e. “ to respond to Mao’s feelings” but he thinks that he can’t do it now because Mao is left here by her bad father. He wishes Mao can see his actual feelings, but as what Oda says – Hiro is being dishonest.