Sehun is a gangster.  Who is trying to win Jongin's heart.  But he need to agree with Jongin's dad rules, if he want to marry Jongin. He need to learn something new, to be the best husband for Jongin. And Jongin's dad set all the rules that Sehun need to follow.  ——— 『Rules To Be The Best Husband』 ∴ Leave the gangster group. ∴ Find a good job, so that you can assure Jongin and family. ∴ Good at cooking (☆). If you don't, you need