Nanami Curse

[may]

So I found out that when you stop sending gifts to Nanami, after some time she'll try to curse you and a quest will appear that can get you another sword and blueprint.
There are apparently two of these quests and I only get the "I Hate You For Life!" one. Does anyone know if there is another requirement for the other one or do I have to pray to the RNG God?

[may]

I think the requirement for the second Curse Quest is sending her Cursed Doll and then not sending anything. At least that's how it worked for me (actually I've sent two Cursed Dolls and then two Daikons, but I think one Cursed Doll will be sufficient). Decchi then kept talking only about her trying to curse me (the stuff about wanting me dead didn't appear like before) and the quest appeared.