https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_706071

[Synopsis]

The bright, kind and popular new teacher, Mariya Konno (Aka Maria-sensei).
But she had a secret.
That secret was—
She had an incredibly strong sex drive—
And was a total nympho.

The protagonist accidentally witnessed this secret.
To keep him quiet about this secret, they somehow end up having sex.

At first, it was gentle—
But gradually, their lovemaking grew more intense—

And then—
Another secret was added.

[Characters]

■ Mariya Konno
A female teacher newly appointed this year.
Beautiful and kind to everyone without distinction, her gentle demeanor earned her the nickname “Maria-sensei.”
She is popular with students and teachers alike, regardless of gender.

■ Koide Kanchi
An ordinary male student, the kind you'd find anywhere.
He is interested in Maria-sensei but he can't keep up with the frenzied enthusiasm of the other boys, so he keeps a step back.

Base +31, darkwing42 +55, jere512 +6