How to Use a Man's Necktie

Synopsis

Due to his father's debt, Park Woojin and Cha Taesung met as debtor and debt collector. After many twists and turns, the two gradually became romantically involved. They'd have a smooth-sailing relationship, even though Taesung could be a bit possessive. The only issue was that during sex, Woojin would have flashbacks of Taesung strangling him, causing Woojin to fall out of the moment. One day, a mysterious note along with a necktie arrived for Woojin... When he tries it on Taesung, Woojin witnesses its thrilling powers...!? (Source: Lezhin Entertainment, translated)