Quick answer — Kouta Kobayashi worked on Yamada and the Seven Witches (OVA) (Insert Song Lyrics), Yozakura Quartet: Tsuki ni Naku (Music), Villainess Level 99: I May Be the Hidden Boss but I'm Not the Demon Lord (Insert Song Lyrics) and 12 more anime.
Kouta Kobayashi worked on Yamada and the Seven Witches (OVA) (Insert Song Lyrics), Yozakura Quartet: Tsuki ni Naku (Music), Villainess Level 99: I May Be the Hidden Boss but I'm Not the Demon Lord (Insert Song Lyrics), My First Girlfriend is a Gal OVA (Music), Teekyuu 4 (Theme Song Arrangement), Teekyuu 5 (Theme Song Arrangement), Teekyuu 7 (Theme Song Arrangement), Teekyuu 2 (Theme Song Arrangement) and 7 more.