Summer Swim! -Watashi-tachi Donna Hazukashii Renshuu ni mo Taete Misemasu | サマー☆すいむっ！ ～私たちどんな恥ずかしい練習にも堪えてみせます～

The coeducation school which overflowed of the nature that the Ranko school is located in the closed town. There is a parents family getting on, Ami moves in to the ranko school by parents convenience.

One day Ami from Akishino Mika of the director of the swimming club in the childhood friend, It is requested that it joins the swimming club. The Ranko school swimming club goes to ruin and is member shortage, Situation immediately before discontinuing. It is said that it will be decided whether it is discontinuing by the result of the nationwide swim tournament after one month. Hesitating few days, Mika succeed in inviting and others as Special Counsel in the Nomura Akira that was an excellent player of the swimming without Ami being able to finish declining it. However, "Nomura Akira" a man... Great player actually before "Hikaru" Then it is not, The younger brother "Akira" was. Discernment is an evildoer with the note delinquent behavior...

Tsumugi Amamiya who is an original adviser, The swim is amateurs huge breasts woman. No matter what discernment means it because it is natural airhead, it swallows on trust. To the place where Akira speaks such a situation with the cellular phone with the acquaintance, The protagonist Koji encounter, a full detail has been overheard. Muzzling also previously, Discernment that solicits Koji to swimming club. It "Delicious desire" has it instead of keeping secret, It is said. A troublesome thing though hated Koji refuses joining a club, Experience "Delicious desire" later being made, To the mouthpiece that joins a club little by little. Though Koji assists badly and felt intimidated, In evildoer wisdom of Akira, a Mika and Amis recommendation, It assumes the position of the coach of the swimming club very much. Under this influence, To the result of joining a club also of girls including Ami to the swimming club.

In the order of Akira, Koji designs exercise method of ecchi one after another. However the practice method that Koji designed advances members swim techniques, The time was shortened fast!