The First Step to Becoming a Son-In-Law! Kill the Beautiful Girl First!

A military king accidentally traveled through ancient times and became the most despised son-in-law. Once he wakes up, his first task is to poison his beautiful wife? How could I do this? Let's kill the person who gave the mission! Super son-in-law, flirting with girls online. You can fight however you want. As the protagonist, I rely on cheating and just want to lie flat! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.