I say fuck it and let them have a 3some.
Jk. But the connection between mc and his sunbae was there, I just wish the sunbae knew how to say his words correctly bc sometimes it comes out very mean which led to misunderstandings. The stepbrother was creepy ngl but i like the way he was portrayed. It was mysterious and I am eager to know how the story will continue. I think mc was smart, questioning what the fuck is happening but i think his memories gets tampered due to his stepbrother that's why things happen to him. Anyways i love how the story is rolling out.
P.s: i still think they (sunbae and stepbrother) should still have a go (at the same time) with the mc. I said wat i said xD