Jyun is on his own for the first time as his father has gone overseas for a new job. He stays behind because of schooling and moves into an appartment complex as assistant manager only to discover the place is a sex service appartment.
Título Romaji:Ai wa Kagi no Kazu dake... Fuuzoku Mansion
Ingles:Love is the Number of Keys
Sinónimo:Ai ha Kagi no Kazu dake... Fuuzoku Mansion, Love is the Number of Keys