Serious levels of out drinking an oni, do not try at home

I really bet that there's a ton of old, untranslated Touhou fan book waiting to be unearthed and translated in the future which could be a good reads, and I wish more like this really should've keep coming.

Shouldn't we have an Alice X Kasen tag as well ?

I guess Reimu could always become an oni by drinking from Kasen's drinking box or even just become a hermit. So there wouldn't be any need to worry about Reimu dying first if they get in a relationship.