Dungeon Monster Manual

Lyle was an ordinary bard until one day he inherited his grandfather's inheritance, and then the gears of fate began to turn... … Not only did he discover that his own grandfather was a time traveler, he also inherited his old man's monster illustrated system. Good news, the old man has become a legend thanks to the system. Bad news, the old man has collected almost all the rewards, and the remaining tasks are too difficult for Lyle. The most terrible thing is that if Lyle slacks off even a little bit, he will be forcibly transported to the monster's lair by the system. After experiencing thrilling adventures one after another, Lyle gradually upgraded and at the same time came into contact with the truth of the world - he lived in a game world, and most of the gods were actually time-travelers called players!