– He is really, really, REALLY excited to taste her blood. He enjoys being able to taste some part of her without hurting her.
– she’s fairly self-conscious about her body, but never to fear, Tsukiyama Shuu is here! To assure her that her body is beautiful.
– He’s also just intellectually curious what it looks like when a someone’s on their period.
– Tsukiyama is a bit of a lube connoisseur, so he likes trying different flavors out to see what matches best with his s/o’s blood.
– His s/o finds this kinda awkward but also funny.
– He’s more gentle/lets her lead when she’s on her period. After all, anything to make her feel better.
– Tsukiyama is more sensitive to the monthly cycle afterwards. Seeing it spurs buying chocolate, flowers, back rubs, etc., every time of the month.