Mirai Harmony (未来ハーモニー lit. Future Harmony) is the second song of Nijigasaki High School Idol Club’s 1st single. It was released on July 29, 2020. The song is written by Kanata Okajima, composed and arranged by Akira Sunset and ulala.

Episode video asli pertama akan mengikuti tiga tokoh utama wanita dalam cerita asli. Dibundel dengan jilid 11 dan 12 dari manga Dokyuu Hentai HxEros . (Sumber: MAL News)

Sebuah cerita asli disertakan dengan volume 10 dari manga Nakanohito Genome [Jikkyouchuu] .