this is very good drama though it is sad to see from flashbacks and forwards the fate of these friends； some criticise this but for me it deepens the tragedy as most tragedies like Greek tragedy you know the characters are tied to an inescapable destiny〜this drama is dark from the start with violence in korean schools and descends into predictable gangster violence and fight for survival of poor people with only small episodes of relief and hope in romance and loyalty to lighten the story。 I was interested in the school episodes and transition from this to the gangsterism though less in the formulaic gangster drama itself・ taking account of development of many episodes there is a certain sympathy for one of the friends but this evaporates from episode 16 as we see them equally caught in the net [there is a sea/fishing motif appearing at the start and at points throughout the drama] of evil。 part of sang taek coming in later is used to work out broader plot of organised crime and corruption though his move from diligent student aiming at law career to going into the army and journalism for me lacks credibility as with how he is brought back into relation with the other school friends as part of the plot。 the element of romance is rather straining for effect and real purpose in this drama and also seems formulaic〜still a very involving and good drama of its type though I do not think this is one for re-watch