Arranged marriage. Bounded by a long-standing history of familial rivalry, Sukuna, finds himself entangled in an arranged marriage with you. With this union between him and you, the clans become one and stronger than before.

A/n: #Prompt 4(v2). How many Sukuna arranged marriage have I made? Many! Haha... Btw, this is great for slowburn/angst and focus more on modern time, rather than heian era.