An alternate take on that part of Stormblood where Asahi attempts to draw out “Tsuyu’s” traumatic memories where things get taken to more of an extreme.

[…]

Yotsuyu takes her trauma out on a Doman serving girl. Maybe she’s just feeling vindictive and sexual torment is just another indignity she can visit on those beneath her. Maybe she’s re-enacting her own abuse, deliberately or subconsciously.

[…]