How Can the Demon Lord and My Senior Sister Be the Same Person?!

Well, after seeing Chapter 60, I want to ask, are the first and last chapters written by the same author? The style is a bit different, and the focus of the description is also different. What follows seems to be the same as a running account...

I think it's a good book, but I don't know why there are so few readers. Anyway, this book is to my liking. I hope the author won't stop updating it [Sending my heart] I think it's very good-looking and suits my taste. That's why no one urges me to update it. I hope the author won't stop updating this book. I really love reading it 😢 💕 💕 💕

Will he--

It's an upset system again, okay?