New teacher undergoes feminization medication and sex; sexual awakening triggered by a toxic colleague; orgasm near death; sexual awakening during a trip; Yamate Ria; SSIS-804

[A Diligent Teacher Falls into a Pleasure Swamp!] During summer vacation, new teacher "Ria" goes on a school trip with a colleague. Surprisingly, the teacher has an unusually strong sex drive, and Ria, whom he has his eye on, is drugged with an aphrodisiac during a meal and sexually assaulted. After being sweated and penetrated in a sauna, threatened with breast sex, and repeatedly raped with an aphrodisiac, this teacher becomes deeply addicted to sex and craves more of her despicable colleague! "Give me more of your dick!"