Truee, he even tell some detail truth about NDS before confess, what a gentleman..
I mean he asked DS why was he there and literally asked him if he was there just to help and DS says yes and that he wasn't sure if he's being actually helpful.
There wasn't any assumption on his part, he knew from the get go that DS just came to help without any expectation of getting help from HJP in getting into Sandbox.
Well, but let's not forget that Ji Pyung did not write the letters himself, they did it together with the grandma.
I feel like their past connection is being somewhat exaggerated. Everything HJP has done to this point is only a part of paying back his 'debt' to grandma (we know this when he looks at the shoes that he was gifted by her) and on the other hand NDS went to the event only because he read SDM's letters.
Yeah, seems like it's the person who was threatening him, and them being out in a raincoat was a coincidence.
They are in the same city, so makes sense for people to be wearing raincoats while it's raining. Them being out sometime in the same night is the only coincidence,
There wasn't any assumption on his part, he knew from the get go that DS just came to help without any expectation of getting help from HJP in getting into Sandbox.