Boku to Futari no Goshujin-sama -Hokeni to Doukyuusei no Abunai Seiheki | 僕と2人のご主人様 ～保険医と同級生の危ない性癖～

Protagonist Matsunaga Hiromu, schoolboy who goes to school very usually. However, after M attribute of public health doctor Sakura Sayaka is found, the life has changed completely.

Pitch-darkness inside, i am done the blindfold and gag, it was tied to the bed in the school nurse's office and it groaned in the rough breath. My "master", "The guest is brought tonight" though it was said it was very unexpected, on earth what intend to do.

The sound that the door opens will be heard before long, next the voice of a surprising girl was heard.

[Kyaa!! What, that person!? Appearance of what...!! Hey , sister-in-law...!!]

The voice, the one of classmate Sakura Minase that i had favored secretly. Master hits my body with nine favorite whips and begins to show it off to her who is surprised...