Breed My Dear Enemy [VertiComix]

Ye Mu traveled into a book and became a minor support character who would die a miserable death. However, Ye Mu was not interested in playing games. "Just kill the male lead and thus make this world collapse so I can get out!" But when facing that skinny little boy, she flinched... What to do? Raise him and use his power in the future? Sounds good! But the male lead got weirder as he grew up! Ye Mu was desperate... "Where is the wise and righteous Emperor you promised me!? Can I start over?"