Kami nomi zo Shiru Sekai: 4-nin to Idol 7.31

Other Name: The World God Only Knows: Four Girls and an Idol, Kami nomi zo Shiru Sekai: Yonin to Idol, Kaminomi OVA, Kami Nomi zo Shiru Sekai OVA, The World God Only Knows: Four People and an Idol, 神のみぞ知るセカイ　４人とアイドル

Summary: Eli, Chihiro, and Miyako try to form a band but end up looking to Katsuragi for help. In the process they meet Kanon and become friends/ rivals.