Fix Your Worries with Push-ups and Back Muscle Exercises! Give It Your XX
Yū was concerned about using her contact lenses rather than her glasses, so in order to relax, she does, while teaching the viewers, the Unilateral Push-ups and the Prawn Back Extension. Afterwards, she accidentally bumped into Shion, making Yū drop her contact lenses, which are broken accidentally by Sakura soon after.