This series is one of the bl that made me cry for the full series. The series revolves around kai and third who are best friends in the gang of four. so third is a closeted gay who fell in love badly with kai. in the other hand kai is the resident player of their university. He hook up with every girl literally. Every time he brings a girl he kick out third since they are living together for the year in condo. Things got really worst when their mutual friend know about this. And yeah finally kai will know this and try experimenting with third which broke third's heart. so when third decided to move on kai catch feelings for him.. things started to get worst and best. All the tears we shed is worth for the ending. yeah its a happy ending:)