Suzu-chan is shy, but also has a slightly proactive side. She tries to open her mouth to show it, but her movements are somehow awkward. The way she breathes heavily, desperately trying to show as deep as possible, is unbearably cute. Once fixed with a mouth opener, she can no longer hide anything. At a distance where the inside of her mouth is clearly visible, you can also see drool dripping down. Even though she's embarrassed, she can't stop. Rather, being watched seems to flip a switch in her, and that expression is irresistible. You might get drawn into the world of shy M × forced exhibition as well.