Ai wa Kagi no Kazu dake
Main Title : Ai wa Kagi no Kazu dake
Official Title : Love Is the Number of Keys
Official Title : 愛は鍵の数だけ
Synonym : 풍욕맨션 ~ 사랑은 열쇠의 수 만큼
Type : OVA
Year : 25.05.2002
Tags : 18 restricted, manga, nudity, office lady, sex
Original Work: Kyon, Minami Tomoko
Character Design: 村板葉子
“Love Is A Number Of Keys” is a story about Jyun; living alone for the first time and becoming an assistant apartment manager. He soon finds out, by being a peeping tom mind you, that this particular apartment services sex to people. The ladies do this out of enjoyment, and Sumire (senior manager and A-class sex fiend herself) trusts him with this secret!