>>4488599
Track 4: They leave the bath and Isuzu leads the girl to the bed to massage her. Mob girl wants to learn how to do massages instead and convinces Isuzu to be on the receiving end while teaching her. Isuzu gets destroyed and spills about her intense love for Ichiko. How she loves everything about her from head to toe. All the weird incestous rooms she wants to lock her into.
Track 5: Isuzu finally manages to reverse their positions and massages the girl. She uses Tenne's special massage oil... A bunch of oil massage ASMR happens. More talk about the sisters and how isuzu totally treats them all the same. Isuzu moves on to a head massage and then disovers mob girl's weakness are her ears, so she starts gleefully whispering right into her ears. Eventually mob girls is so relaxed she falls asleep. Isuzu covers her in a blanket and thanks her for today.
The end.

Honestly. this was shockingly tasteful, not especially horny and really focused on Isuzu as a character way more than any stupid coomer scenario. The mob girl might not talk, but you get a real sense of them interacting. I kinda liked that mention of her eyes sparkling when Isuzu let her massage her.
They clearly marketed this as something it was not, but that is what makes it a nice surprise.