@ gravytub It's the forbidden fruit angle everybody loves. Unless this was all part of some sinister plot, Mima would never approve of this relationship.
Yeah, that bit's like it mistakenly arrived from a different story or something. Very weird tone shift.
Oh--upon review, that part is just Marisa having a weird daydream when she noticed the collar (which is evidently left over from some earlier adventure). That's... still weird, but not AS weird.
(Also, the casual mention on page 28 that Marisa learned to trib from Sakuya is... interesting.)