Mastering the Secretary summary: Secretary Han has been working for the same family for years, so he watched the young master of the house grow up and has always doted on him. But now his beloved young master has taken a special interest in him. Unable to say no to his beautiful young master, they start a steamy sexual relationship. However, Secretary Han is in for an unexpected surprise because his master is going to show him what it’s really like to be under him. **Original Webtoon:** [RIDI](https://ridibooks.com/books/4947000001), [Lezhin](https://www.lezhin.com/ko/comic/doryeonbiseo), [MrBlue](https://www.mrblue.com/webtoon/wt_000057560), [Naver Series](https://series.naver.com/comic/detail.series?productNo=9870571), [BookCube](https://www.bookcube.com/toon/detail.asp?webtoon_num=230449), [Bomtoon](https://www.bomtoon.com/detail/youngmaste) **Official Translations:** English: [Lezhin](https://www.lezhinus.com/en/comic/mastering) Japanese: [cmoa](https://www.cmoa.jp/title/291307/), [Renta](https://renta.papy.co.jp/renta/sc/frm/item/381972), [Mecha Comic](https://mechacomic.jp/r/books/198887), [Booklive](https://booklive.jp/product/index/title_id/20132146/vol_no/001), [Beltoon](https://www.beltoon.jp/detail/bocchantoboku) Others: [T.Chinese](https://www.bomtoon.tw/detail/dobi), [Spanish](https://www.lezhin.es/detail/un-secretario-sumiso) ***Note:** Compared to its Pre-serialization, this version has scenes redrawn and new scenes added*