one of the best “green” obsessive MLs out there.

He should be a yellow flag and thats including his hair and eyes

How is he green??
Just by his train of thought, he's not sincere at all! He's indeed obsessed to Jinwoo. But that doesn't guarantee he will be good to Jinwoo.

Read Healing Paradox if you haven’t. The best of all the “green” flag tops, I haven’t seen anyone do it better than him