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Lum-chan's Becoming a Cow? (ラムちゃん牛になる!?, Ramu-chan ushi ni naru!?) is the 117th episode of Urusei Yatsura.


Ataru and Lum both get bitten by a cow in a pet shop. Shortly afterward, Lum has her horns grown and resembling a cow's horns, thus fears that she is slowly turning into a cow.

Plot Overview

Warning: the following text contains spoilers about the plot or the series.

Lum and Ataru are at a pet shop looking over the animals when they come upon a cow. Ataru demands to know from the clerk why a cow is being sold at a pet shop. The clerk states that the previous owner had a problem with the cow. To illustrate this, the clerk instructs Ataru to place his hand close to the cow, which he does and it bites him. Lum frees Ataru but gets bitten as well. Since the cow won’t let go, she gives it a massive electrocution as Ataru gives it to the clerk verbally. They leave the shop and Lum returns to her ship to bandage up her hand. The next morning, she discovers that her horns have lengthened and become cow-like, making her afraid she’s turning into a cow.

Lum’s multi-day absence from school has Megane and Mendō upset and pestering Ataru about it. When a weary Ten-chan arrives at school, he lets Ataru know that Lum has been affected by the bite of the cow. For her part, Lum has gone to the countryside to observe a field of cattle where she imagines a time in the future when she has become mostly cow. She pays a visit to Ataru, who lives in the country in a poor hut. He does not know her but is kind and as they talk, Lum gets him to tell her that in his youth, he loved a girl named Lum. Lum is prepared to sacrifice herself so that Ataru can be fed but when Ataru sees this, he tells this “cow” that he loves her and makes her his wife on the spot.

With Lum’s continued absence, Megane and Mendō again hound Ataru, who directs them to Ten-chan floating above. Ten-chan won’t say what’s wrong but lets it out that Lum is sick. Lum appears in the window with her hair in buns, saying she’s OK and wants to speak to Ataru. She accidentally causes Ataru to fall to the ground and at the infirmary, Lum has to fend off Sakura’s questions about her condition. Lum finally gets Ataru off alone and she makes a strange request that if after she leaves a cow shows up at his door, he should name the cow “Lum” and treat it well. She attempts to leave but Ataru grabs her legs. Her buns drop, revealing her extended horns.

Lum weeps and tells Ataru she’s turning into a cow. Ataru is horrified by this but promises to take good care of her and to never eat beef again as he embraces her. The two come home where Ataru’s mother asks if Ataru can do the shopping. Lum volunteers but hearing that beef is one of the things she has to buy, Lum flees to Ataru’s room crying, causing Ataru to go off on his mother. Meanwhile, Ten-chan finds out from Lum’s father that the horns are a merely a symptom of Lum being ill and they’ll go back to normal when she’s well. However, since Ataru is so devoted to the idea of caring for Lum as a cow that he’s building a cow shed for her, Lum can’t bring herself to tell him the truth.



  • Although Cherry doesn't appear, his voice actor narrates the episode.

Differences from the manga

  • The imaginary tales, Lum visiting a field of cows and imagining how life would be after becoming a cow are original in the anime.
  • Onsen-Mark and Shinobu don’t appear.