Anime Song Database
Source: MyAnimeListHaruka Nogizaka's Secret
Theme song information
Opening Themes
Tomadoi Bitter Tune by Miran Himemiya and Chocolate Rockers
Ending Themes
Hitosashiyubi Quiet! by N's: Kana Ueda, Mai Goto, Rina Satou, Kaori Shimizu, Mamiko Noto