Giguhan Un-Myeong

Kwon Un-Myeong, known for being easily swayed, hears a story from a friend about a unique way for couples to spice things up

and wonders how he can try it out with his long-time partner, Lee Won-Yeong. To convince the stubborn Won-Yeong, Un-Myeong comes up with a single clever plan...

“Okay, starting today, we're in a rut!”

(Source: MrBlue, translated)

Note: Includes one extra chapter.