Upon Returning Home As A Military Major General, I Was Told To Attend School, Even Though It's Quite Late Now - Chapter 5.1: Reunion With Childhood Friend

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

Her family used her, her boyfriend cheated on her and had an affair with her stepsister, and in the end, she was killed by them. But fate took pity on her and gave her a second chance in life, and in this life, she promised to reclaim everything that was stolen from her by those scums.

But who would have thought that in this second life, she would also meet him? She was spoiled and pampered by him so much that nobody dares to bully her anymore.

[You have been killed by the Hero of Light.]

[You have died.]

I had died at the hands of the main character in the novel I had read before.

But I got another chance. I regressed and returned to the time when I first entered this novel world.

Once again, I live in this novel world as an extra character.

Since I have experience and knowledge, especially my World System which had upgraded, I'll do what I want to do.

I will become stronger than the main character.

Fear breaks the boundaries between dreams and reality, and it is impossible to tell which is reality and which is illusory. When the nightmare really comes, no one can be alone.

This is both a danger and an opportunity.

- Description from novelbuddy