Reiko slaps Kotoko because she was the one who caused Naoki's arm to be injured. Kotoko feels bad about causing Naoki to be unable to enter the basketball tournament final. Reiko then walks away angrily.
Naoki comes into the class with his arm bandaged. Watanabe and his classmates ask about his injury and attributes it to Kotoko's doing. Naoki says that there's still Watanabe in the team but Reiko says that without Naoki, the school will never win the tournament. Watanabe feels jealous when he sees Reiko caring about Naoki.
Kotoko comes home and sees that Naoki is already home. She rushes to find Naoki but bumps into his injured arm in her haste. Naoki grimaces in pain and tells Kotoko to keep away from him. He gets two cans of drinks from the fridge and Kotoko thinks that one is for her. Actually, the other can is for Yuki and he scolds her for being thick-skinned and a jinx to his brother. Kotoko apologises to Machiko about causing Naoki's injuries but she tells Kotoko that Naoki is injured for saving the person he loves so it is a glorious injury. Naoki denies loving Kotoko and heads for his room.
The next day, Kotoko offers to carry Naoki's bag for him but she rejects her gesture. Kotoko insists on doing that but causes Naoki's arm to knock against the wall. Naoki tells Kotoko to keep away from him.
Reiko tells Naoki to
go for a checkup at her family's clinic but Naoki rejects her
suggestion. Naoki is adamant about it even with Reiko's
insistence.Kotoko comes to the 'A' class to look for Naoki. When she leaves the class, Kotoko is dragged into the 'A' class by force. Kotoko is scolded by the 'A' class and Reiko insults Kotoko by saying that she's a jinx who has brought Naoki nothing but trouble. Kotoko is so helpless when Kin-chan and his friends charge in to stand up for Kotoko. Naoki enters the classroom and says that he didn't say anything to his classmates. Kin-chan refuses to believe Naoki's words and Naoki calls him a fool. The 'A' class then throw Kotoko, Kin-chan and the others out of their classroom.
Kotoko meets Naoki on the way home and tries to get close to him but fails. She asks about Naoki's injuries at the breakfast table the next day. There is a ex-classmates gathering at Izu so Kotoko's dad and Naoki's father will go there. As for Machiko, she has to take care of Yuki so she can't go. Naoki tells Kotoko not to follow him around on a holiday.
Kotoko is late for a date with Junko and Satomi when Machiko comes in to give her a very old-fashioned frock. Kotoko is unable to resist Machiko's kind gesture when she insists on making Kotoko wear the frock.
Junko and Satomi are at the fast food outlet waiting for Kotoko. Since she is very late, they decide to leave without her. Just then, they spot Reiko coming into the fast food outlet. Junko and Satomi lie to Reiko that Kotoko is on a date with Naoki in order to antagonise her. Watanabe comes at that time and Reiko asks him to leave with her. He is delighted to go with a date with Reiko alone. Junko feels sad that Watanabe likes Reiko since she likes him.
Kotoko runs in the dress that Machiko gave her and attracts stares along the way. When she reaches the fast-food outlet, they have already gone. On the way home, she finds Naoki and Yuki playing in the park. Kotoko sits by the side and watches Naoki intently. Although Naoki has noticed her presence, he pretends not to see and ignores Kotoko.
Reiko walks by the park and sees Naoki and Kotoko
together. She misunderstands that they are on a date and is
furious. Kotoko joins in and throws the ball so hard that it
lands in between some bushes. Reiko takes the basketball away so
Kotoko cannot find it. Kotoko searches for the ball for a long
time and she gets dirty and messy. Kotoko is even mistaken as a
pervert and taken to the police station when she sees a couple
kissing in the park.Kotoko returns home and apologises to Yuki for losing the ball. Yuki tells her to find it or she should never come home. Machiko stands up for Kotoko and Yuki runs away, crying.
The next day, Kotoko goes to the park again to look for the ball but fails to find it. When she reaches the school, Kotoko is shocked to find a poster saying that she is a thief in the Irie residence. Reiko and her friends insult her and throws her bag around. Kin-chan comes to Kotoko's rescue but they throw Kotoko's bag onto the floor. Kin-chan sees the poster and tears it up in anger.
Kotoko's classmates including Junko and Satomi don't believe in Kotoko's innocence. She tries to defend herself but to no avail. Naoki speaks up for Kotoko that she didn't steal anything from his house. Reiko is unhappy that Naoki is speaking for Kotoko.
Kotoko is unhappy about the rumour and Naoki sees it although he pretends not to care. At night, Kotoko goes to the park again to look for Yuki's ball. She is caught by the policeman again but Naoki comes to her rescue. Kotoko thinks that Naoki cares for her but Naoki denies it. They finally find the ball but it has already been cut up. Kotoko does not dare to give the torn ball to Yuki.
Kotoko apologises to Yuki but he refuses to listen. Naoki asks Reiko why she cut up his basketball and Reiko is speechless. She feigns ignorance but Naoki refuses to listen.
Kotoko buys a new basketball for Yuki. Machiko also buys one to pacify Yuki. Kotoko gives the ball to Yuki but he rejects it. Naoki persuades Yuki to forgive Kotoko. Kotoko feels bad and leaves the ball outside Yuki's room. He finally accepts the ball. Kotoko is happy to know that Naoki speaks up for her and Yuki has finally forgiven her.
Naoki explains to the 'F' class that Kotoko didn't steal anything from his family. Reiko is furious about it.
Kotoko's dad and Naoki's father go for the classmate gathering. Just then, Machiko receives news that Naoki's granny has fainted so she brings Yuki with her to visit his granny. This leaves Naoki and Kotoko alone in the house.
Kotoko tries to
cook dinner for Naoki but ends up making a mess of everything.
Naoki takes over and Kotoko is surprised at Naoki's culinary
skills.Kotoko lies in bed imagining that Naoki will come into her room. To her surprise, Naoki really comes in...