Ryūji (竜児) is one of the members of the Idol group Uchōten Boys, who also appear during the ending song sequence.
The youngest member of a boy band called Uchouten boys. He appears in the ending of the anime and is first shown in chapter 12 of the manga. He is young and friendly and can be somewhat childish, but dislikes being shorter than the other two members. He went to Madoka to ask for a change in his design since he stopped wanting to look like a kid by wearing shorts but he refused. He realizes he is made to wear shorts since his legs are considered attractive and that he should not be afraid to show them off (with a little help from Chihiro and Madoka). He can be forgetful, considering he forgot to report his lost wallet and phone to the police and even a little clumsy since he told his group mates where he went by mistake but he is caring. He dreams of becoming a suave gentleman like Madoka (not realizing that is his business facade and not his true personality).
Ryūji (竜児) Ryu (竜) means dragon and Ji (児) means child.