Please note that there is no sexual content in normal chapters except for chapter 7 which has moaning only. Chapters with nsfw will have [NSFW] listed in front of them

A boy and two of his friends find themselves selected to be punished in the place of his last generations for the disturbance the rebellion of two cities has caused. The punishment was that 20,000 children aged 10 - 16 years of age had to enter a simulation type MMORPG where they would have to kill 10 bosses to exit. If you die in the simulation, you die in real life. 300 days, to clear the simulation. 10 bosses. He enters the simulation and forms the strongest guild, will he be able to clear the simulation?