Ayumi, Haruo, and the others have summer vacation and they decide to go swimming. Unfortunatly, Haruo can't swim so Ayumi is willing to teach Haruo how to swim. Once at the school pool another one is close by. Ayumi figures that since not a single person is swimming in the other pool she decides to teach Haruo there. But what Ayumi is unaware of is that the pool she is teaching Haruo in is the haunted pool, a rumor passed down because of the girl who wanted a popular swimsuit but suddenly got hit by a passing truck and that her ghost lives in the pool.It's summer vacation, and Ayumi and the Yoshikawas decide to go swimming at the school pool. However, there is another pool close by that is said to be haunted. When Ayumi tries to teach Haruo how to swim in that pool, the rumors of the haunted pool turn out to be true as the ghost inhabiting the pool literally sucks the life out of Haruo!
Ayumi and the other girls return to the pool at night and confront the ghost in order to save his life. With a very low chance of victory, Ayumi and the others form a plan hoping it might succeed and that plan was to lure the ghost into jelousy by wearing the popular swimsuit she always wanted. The plan came into furition and it worked ending the haunted pool rumor.
泳げない春生を猛特訓！
夏真っ盛り、鬼コーチとなって学園のプールで水泳指導に励もうと意気込むあゆみ。
とはいえ、部外者にも開放された施設で、春生にだけ集中レッスンするのはちと問題アリ。
そこで、カギで閉ざされた競泳用プールを使うことに。
プールサイドでは、超自然科学クラブのハジメと宇宙が怪奇現象について調査中。
学園に伝わる怪談を意に介さないあゆみは、カナヅチ春生をシゴキにかかるが、突如ナゾの衝撃波が彼女の水着にアタック、
続いて一面に水柱が発生した！
Mientras que en vacaciones, Ayumi trata de enseñar a nadar Haruo pero le dice a una historia de fantasmas a ella como una excusa para ir de vuelta a casa y termina siendo exitosa. Miedo de conseguir demasiado la atención de la clase, ella toma Haruo a la piscina cerca, pero es atacado y Haruo se convierte en ectoplasma.
