Extra Days

Welcome to McCoy, the world's leader in android and cybernetic technology. Brother, lover, spouse, or even pet, thanks to McCoy… …you no longer have to say goodbye. McCoy, join the world's most perfect family. **Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=780984), [Naver Series](https://series.naver.com/comic/detail.series?productNo=6459838)