A Smartphone Bridging Three Worlds

In Fallen Mountain Village of Chaos River Town, twenty-year-old Yun Buhui's life is a daily struggle against poverty and hardship.  His father's disability and his mother's severe illness force him to bear the family's burden.  
One foggy day, while rushing to fetch a reluctant doctor, Buhui stumbles upon an identical phone to his own, triggering an unexpected event.    
A blinding light from the mysterious phone whisks him away to an unfamiliar realm, where an "Almighty Immortal Cultivation System" offers him a chance to bind and synchronize with reality.    
Faced with no other option, Buhui activates the system, leading him into a dark and perilous adventure.    
Will Yun Buhui master the cultivation secrets and find a way back to save his family?