If I'm remembering the curse was use before by the Mato Guy. But then we all known its a trap and a stupid one. Who would willing not require a test of whatever is brought from Mato land. But you are right Ren has to take the bait.
I started Juujika no Rokunin but as soon as the teenagers had whole gangs under their command lost interest. I skipped ahead a d it just got worse. While Maria has some issues at least it's kept the revenge to a small group and not bloated out.
You forget kaho was getting back at Shirawasa for his interview when he let the dog kiss her and she thought it was him. Though in reality they all need to learn what a safeword is if they truly are worried about getting hurt.
I thought the diuretic was part of the play with the teacher but...
No it's the substitution ring that saves you once from death. The fertility item was a bracer.
I'm surprised he didn't give her the sword of the sky knight since she has the knights blessing and could actually use it.