Global Necromancer: Others Spend Mana, I Spend My Life

A game has descended upon another world, and death is quietly closing in. Everyone has entered an age of magical class advancement. Terrifying creatures from other worlds, eerie Abyssal dungeons, and countless challenge instances. Death and opportunity go hand in hand. Fight monsters to level up, challenge the Abyss, and walk the line between death and reaching the summit. … On the day of his class advancement, Yang Feng awakens the only Dark-class profession: Necromancer. “Abyssal Lich King!” “Ten-Thousand-Year Skeleton King!” “Millennium Bone Dragon!” “…” Summon the undead and crush everything in your path! But his summons seem a little different. [Ding~ Summoning a Level 1 Skeleton Spirit will consume 1 year of your life. Confirm?] [Ding~ Summoning a Level 10 Lich will consume 10 years of your life. Confirm?] … [Ding~ Summoning a Level 100 Bone Dragon will consume 99 years of your life. Confirm?] Yang Feng’s mind was full of question marks. What the hell is this? Other people spend mana to summon, but my summons cost me my life?