Movie
Description
Moroboshi Ataru is a seventeen-year-old student at Tomobiki High School in Class 2-4 and the central protagonist of Urusei Yatsura: Only You. He is defined by an extraordinary degree of bad luck, having been born on the unluckiest day of the Buddhist calendar during a major earthquake on Friday the 13th, which draws an endless series of unfortunate events, aliens, and supernatural phenomena to himself and those around him.

His personality is marked by extreme lecherousness and laziness. He constantly pursues any attractive woman he encounters, immediately asking for their address and phone number, and dreams of living in the center of a harem of exotic beauties. He frequently tries to avoid schoolwork and sleeps in on school days. Despite this, he occasionally reveals a surprising chivalrous streak, claiming he could not call himself a man if he hurt a woman, and his classmates acknowledge this side of him. He also displays remarkable intelligence when escaping from trouble and possesses superhuman tenacity, durability reminiscent of a cockroach, and the ability to recover quickly from injury. His speed is notable, often shown wearing a track uniform.

Ataru’s primary motivation is to indulge his womanizing desires, but underneath this facade he genuinely cares for the alien princess Lum, who believes she is his wife after a misunderstanding during a game of tag that decided Earth’s fate. He vehemently denies any romantic attachment to Lum and treats her as a nuisance, yet he repeatedly demonstrates protective instincts toward her, such as putting his own face in the path of a punch to shield her. When faced with the prospect of losing her, he goes to great lengths to prevent it.

In the film Urusei Yatsura: Only You, Ataru is forced into a crisis when wedding invitations arrive for his marriage to Elle, an alien princess whom he had unknowingly engaged to by stepping on her shadow in a game of shadow tag eleven years earlier. This event threatens his relationship with Lum and throws Tomobiki into chaos. Ataru’s role is to navigate this absurd predicament, balancing his typical lecherous impulses with the genuine emotional stakes of his connection to Lum.

Key relationships include Lum, who loves him unconditionally and punishes his flirtations with electric shocks; Shinobu Miyake, his former girlfriend who promised to marry him if he won the game of tag but later loses interest; his parents, who view him as a hopeless cretin and a source of constant regret; and various rivals and friends such as Shuutaro Mendou. Throughout the series and in Only You, Ataru shows slow development—becoming more comfortable sharing a life with Lum and occasionally acknowledging her importance, though he never fully abandons his compulsions. His notable abilities are his unparalleled stamina, speed, and an almost supernatural capacity to survive any physical punishment, which serve him well in both comedic and dramatic situations.