- Kazuya. King of the streets. Lover of slippers.
- Dungeon Master. Owns a club of real men. Lord of deep, dark fantasies.
- Mark. Boss of the GYM
- Aniki. The head of the gang.
- Gangster streets
- Club of real men
- Locker room in the gym
Mr.FLEX rests after a hard dance with his beloved saxophone. Having finished the joint flex, he puts his friend in the bed and goes to bed himself. Morning comes, Mr.FLEX goes in search of his friend, but instead of the saxophone, he finds only a note with the signature: “From Billy”, which indicates the location of his golden friend. Without hesitation, Mr.FLEX decides on an adventure, puts on his signature panties and bandana, and goes to return his saxophone.
