The First God of War in the Online Game Demonic Domain

The protagonist unexpectedly travels to the Demon Realm and appears in virtual reality. The male protagonist uses his experience in the PC version of the same Demon Realm in his previous life to take advantage of every opportunity in the virtual game. When others are building equipment for upgrades, the hero is already squatting on the boss. When others are struggling to raise stars for fantasy beasts, the hero has already implemented the production line of secondary pets in the 9-star dungeon. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.