Under City Manhwa

In this day and age there are numerous online games you can immerse yourself in, and "Under City" is one of them. Despite the fact that this is a survival game which requires strong guts to survive, with gory scenes and corpses all over the place and hungry players after each other's blood, the "Hallow Man", an indiscriminate killer who slaughters anything and everything he comes across in the virtual world, soon begins to terrify even hardcore fans. Under City is "under siege" now, and the players are wondering...can anyone stop this deranged murderer who is ruining their free time with his bloodthirsty antics?