Ｑ、恋ってなんですか？

Aoi is an office worker who struggles to interact with other people. One night in a park, he meets a mysterious stranger chasing butterflies. He follows the stranger and is suddenly carried into a mysterious light. Aoi wakes aboard a spaceship and learns that the stranger is an alien collecting living creatures. Their travels turn into a search for what love means to two people who do not understand it.