>>538366920
Everything makes sense when you consider that sensei treats students how they secretly want to be treated, and iori he's a massive pervert to her
Ako and iori are both perverts in different ways

In her momotalks shes on a mission with sensei and just decides to go topless sub bathing for a bit, while she knows sensei is nearby and will find her
She's subtle about it, don't trust a woman's words, trust her actions