Angel Beats! the 4-Koma - Bokura no Sensen KoushinkyokuAngel Beats! The 4-Koma; Angel Beats! the 4-Koma - Our Battle Front Marching Song; Angel Beats! The 4コマ 僕らの戦線行進曲♪; Ａｎｇｅｌ　Ｂｅａｔｓ！Ｔｈｅ４コマ　僕らの; 天使的脉动-四格-我们的战线进行曲♪; 天使节拍-四格-我们的战线进行曲♪

A four-panel manga depicting the battle between Angels and the SSS group with humorous situations... Adapted from the anime by Key and P.A.Works in 2010. Key is also the source material for popular visual novels and anime such as Kanon, AIR, CLANNAD, and Little Busters!.