I absolutely loved every little thing about this movie!!! I wasn't sure I'd like it going in, but since it had Lee Je Hoon in it, I had to give it a shot, and I'm SOOOO glad I did!!! It was amazing!!! and even more so b/c it was based on a true story! There wasn't a single thing I didn't like about this movie. I loved the relationship the developed throughout the movie between the music teacher & Jang Ho - they felt like real father and son - it was so heartwarming <3 and Je Hoon's performance of going from a young man who felt all alone in the world where no one cared what he did - to feeling like he was loved, & belonged ^^ it was so precious <3 and Kang Sora was an added bonus - she was so funny lol I'm not a fan of "opera" styled music (I like musical singers, just not opera) but I could handle it in this movie - especially the songs 'Nessun Norma' and 'You Give Me Happiness' (YGMH is more of a normal song though)^^ It wasn't LJH singing the songs - but he acted well enough that it was barely noticeable :) This movie has all elements from the serious gangster fight scenes, to comedy (especially one scene I couldn't help but laugh - even more than I would have probably b/c my mom walked in on me during that very scene! hahaha). I Highly recommend this movie if you haven't seen it yet - get it on your immediate PTW list! I will definitely re-watch this movie! :D This one is NOT to be missed!