Irreplaceable Guy Friend

"I don't think just once will be enough." "Hey, mmm..." National swimmer, Moon Tae-gyeom. He has a secret behind his spectacular comeback after a long slump. The reason he finally broke his stagnant record is none other than his friend of 20 years, Yoo Seo-hae. Every time he sleeps with Seo-hae, his performance improves like magic. At first, it was just for the records. But soon, he starts to get annoyed by every single guy around her. "Yoo Seo-hae's body belongs to me, but there are too many bastards trying to covet it." ...Are we really just friends? **Original Webtoon:** [Ridibooks](https://ridibooks.com/books/5285002583), [Naver Series](https://series.naver.com/comic/detail.series?productNo=14526678), [Bomtoon](https://www.bomtoon.com/detail/metatoon148), [Lezhin](https://www.lezhin.com/ko/comic/irreplaceable_friend), [MrBlue](https://www.mrblue.com/webtoon/wt_000080927)