Masayuki Rudra Nam Ul Nasca

Masayuki Rudra Nam Ul Nasca (often just called Masayuki or referred to as the "Lightspeed Hero") is a supporting character in the anime That Time I Got Reincarnated as a Slime.

He is a reincarnated Japanese high school student (an Otherworlder) who appears as a young, handsome man with short blond hair, blue eyes, and a friendly, somewhat soft-featured face that gives him a cool yet approachable vibe.

In the anime, Masayuki is portrayed as outwardly confident and heroic due to his incredibly powerful Unique Skill, "Chosen One" (which later evolves), but deep down he is timid, awkward, shy, and reluctant to embrace the spotlight. He often feels embarrassed by the massive praise and fame he receives, as events mysteriously always turn out in his favor—making him seem legendary without much actual effort on his part. People view him as an inspiring figure who effortlessly defeats threats, inspires loyalty in his companions (like his party Team Lightspeed), and garners admiration from others, even though he insists he's just an ordinary guy and tries to downplay his role.

His story highlights a humorous contrast: a "hero by proxy" whose luck and charisma create misunderstandings, turning him into a celebrated adventurer and key figure in major events, despite his internal cowardice and desire to avoid trouble. He plays a notable role in arcs involving festivals, tournaments, and larger conflicts, where his passive influence often sways outcomes positively.