My boyfriend and I have just started living together, and he has always been faithful and caring towards me. There's something about his elderly neighbor, around 60 years old, who lives in the same building and often stares at me with a creepy expression while not even returning my greetings. One day when my boyfriend was away, I heard loud moaning sounds coming from next door. Concerned about our happy life together, I mustered up the courage to go complain... but instead, I found the neighbor standing there completely naked!

彼氏と同棲を初めた一途で美しい蘭々。少し気になるのは彼のマンション共有部でよく見かける60代くらいの男、挨拶も返さず蘭々を舐めるように見てくる怖そうな隣人。彼が不在のある日、隣から大音量の喘ぎ声が聞こえる、蘭々は彼との幸せな生活を守るため勇気を出して苦情を言いに尋ねると下着姿の隣人が出てきて…。