Koyanskaya-San - [May'r reward for R Tier or above) (Patreon)

 I tried drawing without line art again. While drawing, I thought "when will Lostbelt 4 come!!?". There is no news at all. ; v ; 

 But judging on the end of Lostbelt3, it seems Koyanskaya didn't make it. Most of the time when villain change side  and  help protagonist, it is a death flag. So I draw her this time. LOL