Kanade Amakusa is a high school student suffering from a curse called "Absolute Choices". This curse requires him to select an action from a list of two or three options that appear before him at any time, and has no control over what choices appear. Many of them are weird or perverse and as a result, the curse has tainted his reputation with his classmates and other people around him, making his life very difficult. However, one day, a choice he makes on his way home from school causes a mysterious, beautiful young girl to fall from the sky.
The choices we make define who we are, and in the case of one unlucky young man, his choices are laid bare before him.
The girl who fell from the sky names herself Chocolat and Kanade soon learns that she is useless. A call from God changes everything, as he tasks him with completing the mission to rid himself of Absolute Choice.
Amakusa's latest task sees him attempting to view the panties of, what turns out to be, the purest girl he's ever met.
Absolute Choice throws Kanade a curve ball he wasn't expecting, and his next mission is sure to put him to the test.
In Kanade's quest to rid himself of his curse once and for all, a little sister type suddenly shows up to put a wrench in his plans.
Amakusa sets out to get two girls to say they like him, the ridiculously big breasted Reikadou Ayame, and the brash Yukihira.
The showdown between the Popular 5 and Reject 5 commences, with Amakusa's mission on the line! Who will be victorious?
Chocolat has suddenly regained her memory, and Amakusa begins to miss her old self.
With the girls in tow, Amakusa heads to Aqua Galaxy, where he must endure a series of increasingly difficult choices. Yukihira lurks in the shadows.
Amakusa must choose between three girls in order to make Absolute Choice vanish for good. What will he do?