I recommend watching this drama if you are into: friendship/camaraderie, school-themed dramas, birth secrets, a bit of martial arts, supernatural abilities. Story: The story's premise, subplots. over-all dialogue and pacing were balanced. It held me at the right amount of curiosity at what would happen next. While the main characters are gathered at Moorim School, the smaller plots are brought to fore simultaneously although piece by piece, step by step. Elements like romance, bromance, a little bit of action, trust and betrayal, friendship, love between a parent and his child -- these are what to expect in the story. I think this deserves a 9 for the story only because it is, in my opinion, well-written. Acting/Cast - I gave this a flat 7. Would have been an 8 however I can't ignore the fact that Hong Bin is a hit-and-miss. There are scenes where he can get pretty intense however for most of the time in the drama, I find that he is awkward with his facial expressions and gestures. (I sincerely hope he improves because he has potential.) I make special mention of Wang Chi Ang's character because I felt he was more complex than Shi Woo. Whereas Shi Woo earlier formed his resolve and shifted from the hot-tempered idol to a calm savior mid-way through the drama, the character shift was a struggle for Chi Ang. His internal conflict was difficult to resolve because it involved his relationship with his father and friends, and his desperateness to feel accepted. However the execution certainly affected my watching experience in this case and even though the supporting cast were generally okay and the older cast (Prof Beop Gong, Wang Ha Oh, Shim Bong San, Dean Hwang and Chae Yoon -- they're all males and with the exception of the Prof Beop Gong, all four others are father figures). Hyun Woo delivers the right feels for Shi Woo. although I felt that towards the last few episodes, Shi Woo took a backseat and Chi Ang became the closer. Direction/Effects/Editing - I would have liked more martial arts. Fight scenes are so-so; don't expect epic choreographed ones. The best sparring I saw was the last one Shi Woo and Chi Ang had--it felt like they were letting all their frustrations out. Ending episode was a good closure though and I mean for the much-discussed key and treasure. Special Effects - not too many, and it was actually fine for me. Editing - Had minor slips that could've been avoided but were noticeable in the drama. The dog/wolf and Soon Deok's wound! The music is enjoyable and the main song is upbeat. Every time the piano intro played, you'd know you're in for a cliffhanger or something's going to go down or it's the end of the episode and the preview is up. ;) Rewatch value - doesn't affect the overall rating. I seldom rewatch dramas! Overall, still a good drama to watch!