｢直樹くんのことはもうあきらめろ｣と父･重雄に言われ、琴子たち親子は新居に引っ越した。琴子も直樹のことを忘れようとするが、そんな時、テニス部部長の須藤が直樹にダブルスの試合を申し込む。琴子と組んだ直樹が勝利しなければ、直樹はテニス部の合宿に参加しなければならない。ちょうどその頃、変装して大学にやってきた直樹の母が、直樹と琴子が高校の卒業式の日にキスしたことを知り......!? Being told to "Give up on Naoki" by her father Shigeo, Kotoko moves to a new place. Kotoko tries to forget about Naoki, but suddenly the captain of the tennis club challenges Naoki to a doubles match, telling him if he doesn't win this match with Kotoko as his partner, he'll be forced to join the tennis training camp. And during that time, Naoki's mother sneaks into the university in a disguise and overhears about Naoki and Kotoko kissing on their high school graduation...!?