Sweet Revenge

Gang Hanul, a outcast that has a natural fighting ability by the name of ”Golden Sight”. After witnessing his friend in a horrific event he wants to get back at the bullies. The former breadwinner, Gang Hanul asks a former fighter to train him so that he can take down the bullies.

Eyama Aito, a high school student, is the victim of daily bullying. One day a strange letter arrives inviting him to a "captivity game." He may choose one person to hold captive for one month with a chance at winning a large amount of money. He chooses the ringleader of his bullies, Aya Kirishima, and the only rule of the game is to not kill her. Everything else is fair game. Eyama's revenge begins!
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Yeon Jang Hwa is a more or less average college student: she attends a pretty good university, is not too ugly, and has a nice boyfriend. Her a twin sister, Hong Reon, on the other hand, is the opposite. Being the good sister she is, Jang Hwa sets out to help her twin sister... but at what price? The truth is in the details.