The ending was nice at least. I think I'm just burned out from "useless lesbians can't get to the point and need 20 years to finally get together" stories.
That was nice, I think their relationship works really well for an adventurer group. They can still marry each other when they settle down one day. It needs more kinky yuri demons, catgirls and futa in the future though.
SSR is the highest rarity for gacha characters you have to get through luck (or lots of money). The chances to get one of these is often around 1%. So SSR in this context just means he's super special and great.
Ok, I was confused because Guro is often used as a sexual tag (short for Ero Guro). Somehow I feel like her friend is safe. Not sure what really triggers her "curse" yet.
For me such things as sister systems, "pure relationships" and fancy girl schools for sheltered young ladys belong to the class s genre which isn't great. Still nice to see more vampires.