Boobs Heart-She is in estrus! ?? ~ Inmorable Education / おっぱいハート～彼女はケダモノ発情期ッ！？～ いんもらるえでぃしょん

Inflating chest and love! Estrus doesn't stop today!

Since childhood, the main character, Tatsuya Akino, who has been following her sister who is useless no matter what she does, spends her days helping the student association to which she belongs.

Miya Akino, a bright, innocent and popular student council president, is an unreliable older sister who makes only mistakes.
Natsuki Kugayama, a perfect superhuman who excels in both literary and military arts, is the vice president of a solid person who acts as the organizer of the student association.
Mari Aiba, an accountant who always causes a turmoil, has a wild personality that anything is OK if it is fun.
Hami Kohinata, a gentle junior and cute little sister's secretary who is polite and always smiling.

One day, when I was having a busy but lively and enjoyable day with the members of the student association, I accidentally drank the experimental drug "Wild Juice" managed by the student association adviser Keiko Makihara.
It is a dangerous juice containing a virus that makes you sensitive to sexual stimulation when you drink it and makes you estrus with a little bit.
When a woman with that constitution called "Kedamono" gets estrus, her chest swells greatly, and the excitement does not subside unless she has sex!
To make a vaccine for treatment, they must be pregnant with the semen of a similarly beasted man!
Tatsuya, the only man who has become a beast, calms the excitement of girls who are in estrus no matter where he is, and decides to have sex to treat him!

The school life of erotic eroticism that suddenly opened the curtain.
Again today, a yellow voice calling for the help of girls in estrus from some classroom--

"Hmm! Also, my boobs are getting bigger ... Rameeee ~~~!"