Other Title: 엑스트라 데이즈

Author: uiyeoung

Summary: 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

Latest Chapters: Ch.5 ,  Ch.4 ,  Ch.3 ,  Ch.2 ,  Ch.1 ,