Second year at Katayama Girls Academy, Yui Abe is a reserved and thoughtful girl who has always adored idols. She may come off as cold and uninterested upon first meet, but deep down, she harbors warm and kind feelings towards those she cares about and simply struggles to communicate effectively. Yui is fond of ragdoll cats, herbal tea, and ice skating, while she dislikes spiders, cooking and spending time with her parents and eldest brother. Some of her favorite hobbies are playing the cello and practicing her idol skills. More than anything, she adores Deck of Song.