Han Boreum just wanted answers about his mysterious illness—not a death sentence. But the shaman he visits drops a bombshell:
“You’re overflowing with dark yin energy. If you don’t sleep with a man full of yang energy, you won’t live long.”
Desperate to survive, Boreum sets out to find his “yang-guy,” and right on cue appears Joo Taeyang—campus heartthrob, top business student, and nicknamed “Apollo” by his admirers.
Perfect, right? Except... he’s a two-faced jerk only when it comes to Boreum.
Still, with his life on the line, Boreum launches a clumsy, tear-filled operation to seduce his moody match.
Between awkward attempts at flirtation and unexpected sparks, Boreum starts to wonder—
Could survival turn into something a little sweeter?
A one-sided love? A healing romance? Or just a very chaotic medical emergency? Either way, he’s not going down without a fight!
[Original Webtoon](https://bomtoon.com/detail/goekf)
**Official Translations:**
[English](https://www.lezhinus.com/en/comic/luna_sol), [Spanish](https://www.lezhin.es/detail/la-simbiosis-del-sol-y-la-luna), [Japanese](https://www.beltoon.jp/detail/taiyoutotsuki), [Thai](https://www.lezhinth.com/detail/sun_moon), [T.Chinese](https://www.bomtoon.tw/detail/goekf)