Volume 1:
1. Natsu★Mama (なつ★まま) [Fueta Kishi]

Sayaka-san, a young beautiful wife got stood up by her husband before going to the beach, then she decides to go without him.

2. Futari no Hanabi (ふたりの花火) [Utamaro]
3. Pool Daisakusen (プール大作戦!) [Kurosawa Kiyotaka]
4. Long Summer Vacation (ロングサマーバケーション) [民兵1号]
5. Kanojo no Kankei (彼女の関係) [Haikawa Hemlen]

Volume 2:
1. Homecoming (帰省, Kisei) [Yukiyoshi Mamizu]
2. Make Love to My Ass (お尻であいして, Oshiri de Aishite) [Ichitaka]

Kento is out on a date with his girlfriend, Kashima Ayumi. They’ve been together for 3 months. In those 3 months though, Ayumi’s picked up a rather kinky habit. A habit that’s left her unsatisfied with regular sex. She wants to tell Kento about it, but she can’t find the courage to do so because she’s afraid that Kento will hate her if he finds about it. Well, due to the intervention of some uninvited guests, her secret will be exposed in a big way. Will Kento be able to handle the sudden revelation and the events that follow?

3. Senpai Only Love (センパイオンリイラブ) [Kurokawa IZUMI]
4. Escalation*Summer (エスカレーション★サマー) [Kumoi Takashi]
5. Summer x Beach = Dangerous Equation (夏×海＝危険な方程式, Natsu x Umi = Kiken na Houteishiki) [Carn]

Volume 3:
1. Histeric Slave [jony]
2. Natsu no Omoide (夏の思い出) [ShindoL]
3. Tanoshii Natsuyasumi (たのしい夏休み) [Arai Kei]
4. Narizon (なりぞん) [Mahiruno Kagerou]
5. Subete wo Kaeta Ichinichi (すべてを変えた一日) [Misasagi Tasuku]

The swim instructor has a dirty little secret that would be disastrous if it was exposed to the public. Perfect blackmailing substance.

Watch Shinzui Summer Ver.

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