The first one is a typical simulator article. You get rewards by changing your life through simulation. It's quite interesting.
The second book is about cultivating a good relationship with the heroine in a dream and sharing hardships together.
What can I say about the third part? I like watching it very much. The traveling elderly group loves the main character. The main character pretends to be awesome from time to time. It's good to watch. Unfortunately, after writing 126, it's completely wrong. But you can still watch the previous part.