I Was Kidnapped by the System

The protagonist is an orphan who has just finished his college entrance examination and is inexplicably kidnapped by a system in his bicycle repair shop. The condition is to complete the system's tasks to get rewards. However, the system has multiple personalities and will transform into different people to torment the protagonist. He can travel through time, practice cultivation, make money, and solve crimes. He doesn't need a personality system and can focus on the things he wants to pay attention to. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.