Mihane Yoshiyama (Yuina Kuroshima) is a 3rd grade high school student. She is a member of the photo club at her school. The day before her summer vacation, she smells a lavender scent in the science lab and she suddenly gains the ability to leap through time. Shohei Fukamachi (Fuma Kikuchi) is Mihane's classmate. He actually came from the year 2122 and is a researcher. Shohei lost a drug that allows him to go back to 2122. In the meantime, Shohei hypnotizes those around him and lives as a high school student. Mihane and Shohei become to have feelings for each other.—AsianWiki