The heroine's brother became a vegetative state because of saving a child who fell into the water. Then the heroine accidentally picked up a mobile phone, and then traveled through time with her ex-boyfriend, trying to go back and save his brother, but ultimately failed.
After several twists and turns, the heroine realizes that her brother committed suicide, but the truth is not just that.
The matter of time travel is complicated and confusing. In the end, based on the guidance from many parties, the heroine realizes the breaking point, seizes the last chance, and successfully escapes from the fire.
However, all this is because the younger brother and sister pray to God and a group of people are operating behind the scenes, and many parties work together to help the younger brother continue to travel through time and space to save him and fulfill his wish.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.