Viola’s mom kicks her bitchiness up to 11, not only insisting her daughter dress a certain way, but accept the fact that she can’t wear what she wants or live her own life. For her mom, Viola’s future consists of being married off to the eldest possible son of the richest possible family.
Not content to sheepishly accept her status as a mere commodity to be traded, Viola “runs away” from home with her luggage, though she only ends up having a girl’s sleepover with Alice and Caph. Viola’s situation reminds use that she suffers a curse just like her brother: one that threatens to limit her prospects for life. If, say, Bocchan were to lift his curse and become the head of the family, he’d likely let Viola live her life as she saw fit.
That’s one reason why Viola gives Alice an old servant logbook which may hold answers about when and how Bocchan’s curse was first established; that, and Viola really does care for her brother. Alice ends up discovering a passage about two women in white nun’s habits visiting the main house right around the time Bocchan was cursed. It’s clearly no coincidence.
One of the white nuns in question is Daleth, leader of Zain and Caph’s order, and thanks to her being able to use the eyes of various wildlife to spy on Alice, Daleth knows the maid has her hands on the logbook. She orders Zain to take it and destroy it, with the implication that if he doesn’t harm could befall Caph. But when Zain is honest about what he’s doing and why, Bocchan offers the book back for Zain to burn. He knows Zain would do anything for Caph, just as he’d do anything for Alice.
Zain ends up “destroying” the book with his magic, but retains a tiny scrap with which he can fully restore the book once Daleth’s eyes are no longer watching. But it’s doubtful he was able to fool Daleth, who finally reveals her face this week, as wel as the bombshell that she has the corpse(?) of Alice’s mom Sharon in her possession.
The slice-of-life episodes made sure we thoroughly cared about Bocchan, Alice, Viola, Caph and Zain so that when the plot-heavy episodes like this come around, they have some bite. There’s now a non-trivial possibility the curses is lifted next week. But even if it isn’t, I don’t see Bocchan and Alice’s love for each other waning anytime soon.