OH BOY I always love answering this question. Number one for me will always be gashakori, I'm biased because of pandemonium but it's also just??? really awesome. Dude who controls a massive skeleton and dude who can shape shift into two other animals AND they kiss each other sometimes??? You can't tell me that isn't the best thing ever. Aside from gashakori though I'm with you on kuroshiro, it's very very beautiful. And this one I like more for the aesthetic than any actual au lore, But valentines ruikasa🤤🤤🤤🤤🤤