Massacre Happy End
https://myanimelist.net/manga/128783/Gyakusatsu_Happy_End?q=massacre%20happy%20end&cat=manga
One Husband Is Enough
https://newtoki340.com/webtoon/37901545?stx=남편은+한+명으로+족하다&title=남편은-한-명으로-족하다 10 Propose to Roger 11 Margot 15 Roger's mother 16 If you want to, you can kiss me whenever 17 Prince visits 18 Roger is knocked out by the drug 19 Gaetani tries to put off the prince 20 Roger's mother loses her mind 21 Assassins burn down the Darkret mansion 22 Madam Darkret's funeral 23 Crochetta takes the blame -> Breakup 24 Crochetta accepts the prince's proposal 25 Masquerade outfit 26 Roger interrupts the dance 27 Gaetani runs into Duke Battenberg 28 Uncontrollable tears 29 Sleep with me rn 30 Roger spots them, Crochetta despairs that she's still not logged out 31 Margot kidnaps Crochetta
Uzumaki