Turns Out They're Really No Good

It's possible that the protagonist's older sister had a "brother-raising system" before, which she uninstalled after successfully raising the protagonist. That's why the protagonist is now almost omnipotent (getting perfect scores in almost every subject). This is just a guess.

😭😭 They're actually siblings! I thought they weren't.

I didn't understand the context of the book title before, but now I think I do. The person who said that was the male protagonist, or rather, the male protagonist who invented and discovered the system in the future. The message he was conveying was that the female protagonists really can't function without the system. To make up for regrets (?)

The purpose of my older sister's existence seems unclear; she seems to serve no other function than being a burden.

Will the goofy older sister awaken a younger brother nurturing system, or will the older sister become a self-improvement system? 😏

The subject matter is good, but there are a few minor issues. Currently, many settings seem to appear only in the later stages of the story, but the author is basically writing about daily life, and the main plot doesn't progress to the point where these settings can be used, making it feel disjointed. Also, the transitions between chapters are too short; a story ends after only two chapters.

Why not just use rock-paper-scissors, one round per game, and rack up money until you're completely broke?

It's good that it's finished; this one really wasn't good. I'll continue with the fantasy genre next time. Which one would suit the author better?

When will you release your new book? 🙂

It's well-written, but not very popular. I hope you can keep it up.