It Was My Girlfriend's 80Th Birthday, and I Proposed Sweetly on the Spot

Lin Feng, the youngest and most outstanding astronaut. While carrying out a top-secret space exploration mission, he traveled to another planet through a wormhole. More than a month later, Lin Feng piloted the spacecraft back. However, due to the different speed of time, in more than a month, a full fifty-five years have passed on Blue Star. "Go and see Shu Yan, she is still alive. Today happens to be her eightieth birthday." Lin Feng wanted to cry but had no tears. But he still arrived at the door of his girlfriend Shu Yan's house. Suddenly, a girl in her early twenties hugged him tightly: "Grandpa! Grandpa, you are finally back!" Lin Feng: "???" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.