Chaa (チャー, Chaa) acts as the supplier of weapons that the SSS uses. Despite looking like a middle-aged man, he is about the same age as Otonashi and the others attending the Afterlife School. He is the leader of the Guild, which makes weapons out of dirt based on memories of Guild members when they were alive. However, if they have never seen a weapon before, the weapon will not work or will explode catastrophically. He is the fourth member to join the SSS.