I'm very sorry that there was a problem the next day. I got three make-up exams during the day yesterday. I was a little sleepy at night and wanted to take a nap and get up to write. Then I just woke up and found that I had overslept...

Today we will make up for yesterday’s 4th update.

Okay, I'll continue to sleep, there will be class tomorrow morning and it will be updated during the day.
Chapter completed!