It can be seen as a spin-off of the Atypical Contact series. A flashback series + a time-traveling theme of the Republic of China. Although there are officers and agents in the protagonist group, it is a bit different from a spy game. It is more like a text RPG in the style of a novel imitating a game. But if you haven't watched the Atypical Contact series or played Red Tu, you should still be able to eat it. It doesn't have much to do with Chitu, except that Chitu's character will appear in a supporting role.
Second person perspective
The time traveler has a chatty system + a cheat code for rewinding
Enjoy life back at a close distance
Intention: How many times do you need to go back to save a few people in your family from dying?