Build the World and Control the Ending

On the first day Gu Yi entered "Ending", he drew the only profession in the world that had no skill description - [Constructor]. The system prompts only one line: [Current number of adapted users: 1/1. Before he could figure out what this profession was, the top three guilds in the server, the "Flaming Dragon Palace", dispatched twenty senior players and blocked him at the entrance of the novice village. The mage who leads the team is level 30, and is in the top 100 on the server level list. He said: "Delete your account, or we will clear all your levels, equipment, and attribute points. You choose one." Gu Yi chose the third option. He stuck the novice stick in the ground, and the moment before the fireball was about to hit him, he modified the underlying logic of the fireball - changing "target: Gu Yi" to "target: the caster himself". The fireball flew back backwards, killing the first mage of Yanlong Palace in seconds. The whole place was dead silent. Afterwards, a player with the ID name Ember Knight came to him and said: "The Flame Dragon Palace is chasing you not because they are afraid that you will become stronger - it is because someone does not want the second constructor to survive." "Where's the first one?" "She has been trapped in the wastebasket for thirty years. Her name is Li Ling. She is waiting for you."