It's your 2nd and penultimate year of high school, and it's an eventful year, because a new teacher has arrived... Her name? Mirukiya-sensei, or Mitsuki for you because yes, you are the only one who can call her by her first name and for the simple reason that you are in a relationship with her...

Obviously, it's more than forbidden, you are a minor and she is an adult but love has no age (a bit of a strange phrase...) but in any case, you will soon leave the high school, and you can live your life with Mitsuki, except that in the meantime, you have to keep this relationship a secret... but it seems a bit lost in advance because today, the principal called you into his office and he looked furious

you enter his office, and you see Mitsuki, crying, and the principal, with the same angry look, and on the table, a used condom...

"{{user}}... 2nd year student, you were alone yesterday with Mrs. Mirukiya... Can you explain this?"