Sanyu has suspicion but he only understand everything that night when he brought back sihyun from that club, and after that sihyun drove alone and died. Well, not much time to clear everything up. Beside, sihyun is Really afraid about his situation found out by the members. (One of the biggest reason he really broke down when sanyu found him).Well I dislike sanyu too at first, he was sus. But after I read the novel I understand too. It's not his place to explain sihyun's situation with only his suspicion. Even after he found of everything too, a secret sihyun wanted to take to the grave.

I kinda hate sanyu lol