I Became the Younger Sister of a Regretful Obsessive Male Lead

Alternative
후회 광공의 여동생이 되었다

Author(s)
Purple Lemon

Artist(s)
Editor: Einna,Translator : Skye

Genre(s)
Fantasy, Isekai

Tag(s)
Updating

Release
2021

Status
OnGoing

I've transmigrated into the world of the BL webtoon where I left my one and only spiteful comment. On top of that, I become the adopted younger sister of my favorite character: the obsessive male lead who is later regretful for his actions, but still dies along with the duke in the end. So, I was determined.
Since I have transmigrated into this world, I can't stand by and watch my favorite character die. Additionally, I also don't want to die.
That's why, author, I'll need to change the tags and the ending of this webtoon slightly! From to . From to . "Brother, please smile like that in front of others as well."
I said to Lucian, who doesn't smile even a little bit in front of others. "..." Was that request too out of the blue? Lucian looked at me with a peculiar expression.
"If you do that, I will give you a gift."
I said that because I wanted to help him in any way I could. He looked at me for a bit and hesitated before replying, "A gift... Is anything fine?" "Of course!" The moment I gave that answer with certainty, his expression changed right at once to that of a starving predator... Did I make mistake? Then, Lucian calmly replied with an expression full of expectation.
"Give yourself to me, Rachel." Huh? What did he say? What did he just ask for?