I maintain that Yuzichiri-sensei uses this manga as an outlet for horny material after being primarily a wholesome artist for most of their career. It's just filtered through the lens of one character's delusions.
Didn't expect a straightforward message about body-positivity in my ecchi manga about a teacher who misconstrues everything as sexual, but here we are. Sasuga, Hida-sensei and Yuzuchiri.