Based on webcomic "Joshi Kosei no Mudazukai" by Bino (first published December 4, 2015 via Seiga Nicovideo).
"Wasteful Days of High School Girls" takes over TV Asahi's Friday 23:15 time slot previously occupied by "Time Limit Investigator 2019" and followed by "Mr. Housekeeper, Mitazono Season 4" on April 24, 2020.