From an orphan with no one to rely on to the trusted right-hand man of the bossKang Eun did whatever it took to meet the expectations of William, the organization's leader.Then one day, William informed him of his son Isaac's return and entrusted Kang Eun with the task of assisting him."What's so great about that old geezer that makes you follow him so loyally? Wouldn't someone younger like me be more appealing?"+