Absolute Choice

Absolute Choice (絶対選択肢) is a curse created by God for certain peoples.

Theories
Appearance In the novel and manga, the choice appears to be a simple screen with the letter "Choose:" (選べ：) and the two options seen below. While in the anime, the command to choose didn't appear but the choices appear everywhere around the cursed character.

Once the choice is made, the cursed will be forced to carry out the choice against their wishes. The choice can even alter reality around the cursed to make them comply with the choice, such as changing genders, making them into inanimate objects, and causing wide spread chaos.

How to Prevent the Curse
According to Seira one must truly fall in love with someone to prevent the curse.

Helpers
These are servants of God, probably Angels who are sent to those affected by Absolute Choice, to help them get rid of this curse.

How to Lift the Curse
To lift the curse, the affected person must fall in love with someone or complete the missions given by God.

Currently

 * Kanade Amakusa

Lifted

 * Utage Dōraku

Stuck with the Curse Forever
Currently none known.

Helpers

 * Chocolat