Yojouhan Time Machine Blues  

During a hot summer day, Ozu, the protagonist's friend, accidentally drowns their air conditioning remote control in their apartment. While discussing their predicament with Akashi, their love interest, a disheveled student from 25 years in the future appears, prompting Ozu to borrow their time machine in order to retrieve the remote control from the past before it malfunctions.

Yojouhan Time Machine Blues was inspired by Makoto Ueda's 2001 stage play Summer Time Machine Blues.