You probably finish it by now but it's BL so between Seong-rok and Je-oh. Currently the relationship seems to be okay but since it's psychological I'm scared it could change at any moment (just cause of other psychological BL's I've read.)
✰ ɪ ʜᴀᴠᴇ ᴀɴ ᴜɴʜᴇᴀʟᴛʜʏ ᴏʙꜱᴇꜱꜱɪᴏɴ ᴡɪᴛʜ ʙʟ ✰