* Story
Iku", a woman has been parasitized by the rumored "nasty bug" .......
When a woman is parasitized by a nasty bug, her sex drive increases many times and the rate of estrus becomes more frequent.
If you don't relieve your libido on a regularly,
you'll become just another sex-crazed person who will have sex with anyone around you.
I didn't want that to happen to the woman I was in love with.
We start our sexual life managing the sexual desires.
Will we be able to spend summer vacation safely??

* Game System
The goal of the game is to prevent your friend, Iku, from going crazy because of a nasty bug.
There are two maps, "Home" and "Outside".
At "Home", events related to Iku occur.
And "Outside", you can earn money by working part-time.
You can finish your homework to end the summer vacation.

Iku has an "estrus score" and a "love score," which increase and decrease with each action.
You can easily check the values on the menu screen.
If her estrus score is high, you will need to relieve her sexual desire.
If your love score is low, you will need to give her gifts to increase her love score.
If you don't do anything, Iku will become

The main character has a concept of "stamina".
The main character's stamina is reduced by choices, actions, studying, Iku's sexual desires, and so on in the game.
When your stamina reaches zero, the game is over,
so you can either rest in the bed in your room or use items to recover your stamina.


* Multiple Endings
The story has multiple endings.
The main character himself works hard while firmly managing Iku's sexual desires.
Or if you leave Iku alone.......
(There are three endings in total.)