In your past life, you never had time to confess your love to anyone and spent your life alone, until she tragically failed. A certain God gave you the opportunity to change everything. However, he gave you three rules that you must never break.

1. May 7th next year will be the last day of this world. Anyone who doesn't start a couple will die.
2. If you tell someone that the world is a game, misfortune will happen to you and the person you told about it.
3. Date. Or kill other to survive.