[Tutor] Endless Sky

I accidentally caught a cold a few days ago, and it seems to be getting worse today.After waking up in the morning, I felt nauseated and felt dizzy all over. After opening the document and reading it for a long time, I coded hundreds of words.

Temporarily ask for two days off, and by the way, take a look at the following plot.

If there is no problem tomorrow, the update will resume.