Shinobu is only heroine who feels OFF in this manga.
Her design - generic plain slightly chubby looking girl with long black hair, other girls have unique design.
Her dream - announcer is boring procedural waigeslop. in the other hand - singer, VA and VT are otaku core shit (and see how girls easily interchangeble - see rikka and iko being Idols, iko singing etc)
Her conflict - it's deep unfunny ones. mother issue and abandonment issue. they couldn't be solved so easily since it's external ones. no matter of what her mom won't go back.
Her position in club - she is dead weight of club and somehow all girls made her to do all work in it. she is used by everyone around her. and her readiness to leave club at any point. it's not matter for her like for other girls.
Her pathetic self destroying game in love competition. she is activly sabotaging herself while all girls at least do not declare their lose. they ready to fight at least few battle.

>>283535862
shinobu's fertile woman's body > iko's boy body