None of the characters are the pure, impeachable morals type. Tae Oh is the brains, smart and can make things happen, but he's afraid to make any specific type of goal or happiness for himself. He waffles with the women in his life, both his own mother and Hye Won, who he constantly pushes away though he loves them on the inside. Hye Won has a terrible debt ridden gambler mother and with In Ha throwing himself at her, she sees a relationship and eventual marriage with him as a lifeline to a financially stable life though she's also smart and talented at what she does. In Ha was always the insecure bully that Tae Oh first met, lording his connection as an illegitimate child of a rich man over everyone. They find common ground in wanting to climb the ladder to success. I liked the parts where the drama showed how tenuous the friendship was, with In Ha noticing that Tae Oh withholding information from him like Hye Won being Tae Oh's neighbor from across the street. Tae Oh keeping entire shares and assets from In Ha and In Ha having his own minions that Tae Oh didn't know about. Also of course when Hye Won and Tae Oh make out after she's engaged to In Ha. They also should have shown more genuine friendship moments that would give any sense of angst with the betrayals and why they would keep talking to In Ha at the end of the series when he has done the most heinous thing including intentionally getting Tae Oh's stepfather released, directly leading to the death of Tae Oh's mom who was abused and dies from her abuser harassing her.

A huge weakness of the drama is that they have only two characters that have the strategic brains that make the scheming any fun to watch and it's Tae Oh and CEO Kang Joong Mo and they both get taken out of play by jail and heart attacks and the drama goes back to the boring meetings of the other characters. Once Tae Oh is settled in jail and he begins to use his brains to control things from the outside, he doesn't finish that out because he's taken out of jail suddenly. Tae Oh is THE smart guy, but his major blind spot is that he doesn't take In Ha seriously as a psycho. In Ha is not smart, but he he will destroy and harm others. He literally had his own half brother and a random woman killed to frame Tae Oh who doesn't account for that even though he barely escaped a prison hit on his own life before CEO Kang saved him. CEO Kang is a guy who's making his own kingdom and Tae Oh helps him see his vision and eventually becomes a son like figure that In Ha wished he could be to his father and becomes the final heir. They show Tae Oh implementing a children's foundation at the end, but again his ultimate goals was never stated aside from wanting power. It's just power to have power. Neither Tae Oh or Hye Won are together, going toward their ambitions as movers and shakers of the world instead, and In Ha has offed himself in failing spectacularly in his life goals that he could have had if he had just trusted Tae Oh without being jealous and hating Tae Oh for being the person he could never be. It had always been a toxic friendship to it's core, with Tae Oh enabling In Ha fake his way to the top, with Tae Oh puppet-ing him to success. Tae Oh is the perfect successor to CEO Kang because he doesn't have anything else but to put everything into the Kangoh empire.

The sister Hee Joo feels wasted in what she can offer the drama. Her whole point was to be ridiculously obsessed with Tae Oh so that she can find and save her father from drowning in the hot tub. It would have been more interesting if she was an active player helping Tae Oh in his schemes. Same with the rest of the surviving Kang family members. The debt collecting gangsters becoming Tae Oh's cartoony buds felt too silly in tone for what's going on in the rest of the drama. Tae Oh's north korean defector, (Italian?) speaking hacker was pretty fun in just the right amount of wacky and edgy though. Him turning the situation with shooting and schooling his cohort that was bribed by In Ha was fun. The ending is pretty dark, Tae Oh is on the top of the world, but has no family, no love, and no friends. Is it cathartic, no, but it's a pretty interesting route to go for a mainstream drama that requires a bit more contemplation for appreciation, but that's not a popular thing for the mainstream audience to do alas.