The Keystone Romantic Combination

"A romantic baseball comedy about a top player and a rising teammate!"

After failing and not liking the top baseball player Hyun, the less successful Youngjoon retrieves from working hard on his baseball career. Seven years later, they suddenly run into each other being on the same team. What begins as an effort to enhance the team's defense by creating a keystone combination with these two, slowly unravels a caring and sweet yet flirty friendship.

Knowing that Hyun has been loving and believing in him for a long time, Youngjoon notices Hyun's cuteness more and more. Not only the training but also their shared living situation heat up their desire and feelings for each other...

**Original Novel:**
[RIDI](https://ridibooks.com/books/1239000929), [MrBlue](https://www.mrblue.com/novel/E000073289), [Bomtoon](https://www.bomtoon.com/detail/_keyrocom), [Bookcube](https://www.bookcube.com/novel/detail.asp?serial_num=se8883), [Naver Series](https://series.naver.com/novel/detail.series?productNo=10219750), [KakaoPage](https://page.kakao.com/content/48289071), [Google Books](https://play.google.com/store/books/details?id=txhEDwAAQBAJ)

**Original Webtoon:**
[RIDI](https://ridibooks.com/books/1180009708), [Bomtoon](https://www.bomtoon.com/detail/kisston_r), [Lezhin](https://www.lezhin.com/ko/comic/keyrocom), [MrBlue](https://www.mrblue.com/webtoon/wt_keystone_wz), [Naver Series](https://series.naver.com/comic/detail.nhn?productNo=4500128), [ZzangComic](http://www.zzangcomic.co.kr/comic/detailview_comic.asp?comic_idx=34997), [BookCube](https://www.bookcube.com/toon/detail.asp?webtoon_num=190184), [KakaoPage](https://page.kakao.com/content/53735373)

**Official Translations:**
*English:* [Lezhin](https://www.lezhinus.com/en/comic/keystone), [Tappytoon](https://www.tappytoon.com/en/book/the-keystone-romantic-combination), [Manta](https://manta.net/en/series/the-keystone-romantic-combination?seriesId=1196), [Tapas](http://tapas.io/series/the-keystone-romantic-combination/info), [Toomics](https://toomics.com/en/webtoon/episode/toon/6054), [Lalatoon](https://lalatoon.com/en/webtoon/episode/toon/6054)
*Thai:* [WeComics](https://www.wecomics.in.th/comics/16508/), [Lezhin](https://www.lezhinth.com/detail/keystone_combo)
*French:* [Tappytoon](https://www.tappytoon.com/fr/book/la-romantique-combinasion-de-keystone-fr), [Lezhin](https://www.lezhinfr.com/detail/bt_4110038), [Toomics](https://toomics.com/fr/webtoon/episode/toon/6054), [Lalatoon](https://lalatoon.com/fr/webtoon/episode/toon/6054)
*German:* [Tappytoon](https://www.tappytoon.com/de/book/die-romantische-schluesselverbindung-de), [Toomics](https://toomics.com/de/webtoon/episode/toon/6054), [Lalatoon](https://lalatoon.com/de/webtoon/episode/toon/6054), [Lezhin](https://www.lezhinde.com/detail/dbd_40017)
*S.Chinese:* [AC.QQ](https://ac.qq.com/Comic/comicInfo/id/646283), [BiliBili](https://manga.bilibili.com/detail/mc31800), [KuaiKan](https://m.kuaikanmanhua.com/mobile/14361/list/), [Toomics](https://toomics.com/sc/webtoon/episode/toon/6054), [Lalatoon](https://lalatoon.com/sc/webtoon/episode/toon/6054)
*Spanish (ES):* [Lezhin](https://www.lezhin.es/detail/la-combinacion-clave-romantica), [Toomics](https://toomics.com/es/webtoon/episode/toon/6054), [Lalatoon](https://lalatoon.com/es/webtoon/episode/toon/6054)
*Spanish (LA):* [Toomics](https://toomics.com/mx/webtoon/episode/toon/6054), [Lalatoon](https://lalatoon.com/mx/webtoon/episode/toon/6054)
*Japanese:* [Lalatoon](https://lalatoon.com/ja/webtoon/episode/toon/6479), [Toomics](https://toomics.com/ja/webtoon/episode/toon/6479/), [Beltoon](https://www.beltoon.jp/detail/kisston), [Lezhin](https://www.lezhin.jp/comic/kisston), [Sukima](https://www.sukima.me/book/title/BT0000805194/), [cmoa](https://www.cmoa.jp/title/201918/), [Renta](https://renta.papy.co.jp/renta/sc/frm/item/214758/), [Mecha Comic](https://mechacomic.jp/books/181158), [Booklive](https://booklive.jp/product/index/title_id/805194/vol_no/001), [Comico](https://www.comico.jp/comic/224), [eBookJapan](https://ebookjapan.yahoo.co.jp/books/591605/), [Honto](https://honto.jp/ebook/pd-series_1000043-805194.html), [LINE Manga](https://piccoma.com/web/product/180214/episodes)
*Others:* [Vietnamese](https://pops.vn/comics/to-hop-song-sat-5eccbd4beec86e0034f209f7), [B.Portuguese](https://br.comikey.com/comics/a-combinacao-keystone-amor-na-segunda-base-webtoon/697/)