The protagonist of the story is a single father who lives at the bottom of the city. He originally wanted to raise his daughter in an ordinary way, but the mysterious door drawn by his daughter activated the mysterious space and system behind it. The system releases various limited-time tasks, such as business project challenges, to help the protagonist counterattack. However, the villains are jealous of the resources and influence obtained by the protagonist, and constantly obstruct it, preventing the protagonist from using mysterious space resources to develop and solve crises. At the same time, the disaster predicted in the daughter's album is approaching. If it cannot be resolved, the protagonist will lose his daughter and his peaceful life, and will also endanger the residents of the community. The protagonist makes a difficult choice between the system's mission of quickly accumulating wealth and helping neighbors and adhering to the bottom line of justice. His financial strength is weak and he has emotional trauma, which affects his judgment in business wars and complex interpersonal relationships. Emotionally, he deals with his confidante and his ex-wife. The villain's rumors also caused misunderstandings among neighbors. The protagonist must improve his strength and resolve the crisis within the disaster period predicted in the album. At the same time, he must repair the relationship with his neighbors, fight against the villains, and protect his family and community.
