Responses
I think it's this one?
https://www.mangago.zone/read-manga/i_will_divorce_the_female_lead_s_siscon_brother/
I will Divorce the Female Lead's Siscon Brother
Yeshh thanks
I'm finding that one historical manhwa, the MC is a girl with pink hair (I think) and she is married to the original fl's brother and that brother is a sistercon I think even the title has sistercon in it, and that was reason why the MC want a divorce like he's so obsessed to her sister but neglect her wife