After-School Training Club - Volunteer Masochism Who Wishes To Be Trained And Tied Up By Themselves. ～ Natsume Usui

[Usui Natsume's SM Bondage Debut Work!] One day, the beautiful girl Natsume, who was living a boring student life, goes panty-less at school and masturbates in search of stimulation. The next day, thinking no one saw her, she finds a mysterious letter in her desk... Bondage, humiliation, training, service, gangbang... A 'After-School Training Club' that makes a perverted M beautiful girl, who begs for 'training' from men, writhe with pleasure and cocks!