Complex sentence: He was a co-composer of music for the game', co-composer of the soundtrack of season three of "Maria-sama" and composer of the music of the anime "Sekai-ichi Hatsukoi" and "Utawarerumono".
Split into simpler sentences: He was a co-composer of music for the game'. He composed music for the anime shows "Sekai-ichi Hatsukoi" and "Utawarerumono".