
Quick answer — StylipS worked on Saki - Episode of Side A (Theme Song Performance), High School DxD BorN (Theme Song Performance), High School DxD BorN: Yomigaeranai Fushichou (Theme Song Performance) and 5 more anime.
StylipS worked on Saki - Episode of Side A (Theme Song Performance), High School DxD BorN (Theme Song Performance), High School DxD BorN: Yomigaeranai Fushichou (Theme Song Performance), High School DxD (Theme Song Performance), High School DxD OVA (Theme Song Performance), The Comic Artist & His Assistants (Theme Song Performance), NAKAIMO - My Little Sister Is Among Them! (Theme Song Performance), NAKAIMO - My Little Sister Is Among Them!: Ani, Imouto, Koibito (Theme Song Performance).