I'll Grant You a Fortuitous Opportunity and Take a Share of Your Karma

Lin Xuan has a constitution known as "Karmic Balance." He can grant others incredible opportunities, but must take something of equal value from them in return. It might be a century of their life, a memory, or even the bond they share with a loved one. He is the most generous giver and the most merciless taker. When he had no choice but to take away every memory his dear friend had of him in order to save them, he looked into their unfamiliar eyes and felt, for the first time, the immeasurable pain that "balance" could bring.