One day, A girl appears and make a timespace quake which destroys the town, this girl was called “Special Disasterous Designated Creature: Spirit”. She is the commander of the anti-spirit organization Ratatosk.

One day, A girl appears and make a timespace quake which destroys the town, this girl was called “Special Disasterous Designated Creature: Spirit”. She is the commander of the anti-spirit organization Ratatosk.
Itsuka Shido is a high school boy, he have a task by Kotori, him sister-in-law that  go out on a date with the spirit girl.Kotori said that ““I don’t ask you to beat the spirit. Just let her fall in love with you and save the world.”
Date a live is an interesting story between Shido, Spirit girl and Kotori.