Henry is an 18 year old who's always been a huge slacker for about as long as he can remember. He has low self esteem, social anxiety, and he's extremely timid when faced against an imposing force or confrontation. His average everyday life is suddenly turned upside down when he alongside 5 other men mysteriously wake up in a dungeon. A man in black appears and tells them that the six of them are trapped there and the only way to escape is to participate in a Game known as the 30 Day War. In this game, the group must work together to clear 30 floors within a time span of 30 days if they wish to return home alive. However there is a catch. Monster girls are lurking around each corner and are eager to pounce onto the boys at each turn. In order to survive, the boys must not only fight, they also must resist falling for their own temptations to avoid being consumed by the demons which lurk around each corner. This is the 30 Day War. Will Henry and his friends be able to face off against their darkest desires or will they fall prey to it.