Roxi Oxi's Things

I started reading this manhua/manwha a few years ago and from what I remember it was about this middle school or high school girl who had like a drawing tablet and she used it to summon a demon princess from another world or something like that. yeah thats all I remember, let me know if you have any idea plz I've been looking for forever with no luck

bonus points: there's this other manhua/manwha that I found maybe a couple of months ago about two girls- one with long blonde hair who needs special pills or she'll die and turn into a monster, one with short black hair who is strong. In one of the first scenes, the short haired girl is trying to kill herself in a church I think when the blonde breaks in through a window on a motorcycle and they fight a monster together, etc