er idk why i randomly got accused of being a double account but ok
ignore them, just jobless people. timeline wise Kiss Me, Liar is supposed to be the main story, Chase makes cameos in there as an actor. but you don't need to read any of the other stories, and imo i don't recommend it because the main story has sexual assault. and yes yeonwoo isn't together with chase's sister, he's the protagonist of Kiss Me, Liar and his ML is a dick
he's not Emma's boyfriend, Emma likes him and expected to have a relationship with him bc he was nice and friendly with her but, in "Kiss me, liar" Yeonwoo is in love with his boss (also Emma's boss and an asshole), he never thought of Emma in a romantic way. also the author of this stories, Zig, has a whole universe based on omegaverse, you don't need to read the rest tbh but sometimes there's additional info in them
i'm not good with stories where you have to wait for the reveal but i think this one is done pretty alright. but if it drags out any longer i'd be pretty restless. side note: i'm trying to understand how all the stories link together, anyone can help me? is that yeonwoo guy like actually the sister's boyfriend or is he in another BL