Boundless Necromancer (Korean: 나 홀로 주문하는 네크로맨서, RR: Na Hollo Jumunhaneun Nekeulomaenseo)—often localized in English as Boundless Necromancer or Boundless Ascension—is a high-octane "Tower Climbing" manhwa written by Seong-ho and illustrated by 2B. It is widely recognized for its "hardcore" survival elements and a protagonist who grows through extreme self-sacrifice and a unique "growth-type" ability.

The story follows Han Sung-yoon, a man who dreamed of becoming a "Hunter" but lacked the innate talent to succeed. After years of failure, he is suddenly summoned to the Tower of Trials, a mysterious dimension where players must climb floors to survive. Unlike others who receive standard classes, Sung-yoon awakens a unique ability: "Growth-type Necromancy." However, this isn't typical necromancy; he doesn't just summon skeletons—he absorbs the souls of his defeated enemies to permanently increase his own stats and steal their skills, allowing for limitless, "boundless" growth.

Alternative Names and Titles

Boundless Necromancer / Boundless Ascension / 나 홀로 주문하는 네크로맨서 / Oneulman Saneun Gisa