Rei has a literally bottomless stomach. He doesn't just eat; he inhales food like a black hole, often causing a scene in local restaurants.
In this episode, happens upon the "tiger-cow" in town and, finding it strangely cute, brings it home—only for it to transform into the stunningly handsome Rei. Lum is immediately dismayed, as she dumped Rei for his obsession with food over her. 3 : The Coming of Rei, the Handsome Shapechange...
He isn't exactly a conversationalist. His vocabulary consists almost entirely of food names and grunts. Plot Highlights Rei has a literally bottomless stomach
Rei is Lum’s former fiancé, and at first glance, he’s everything Ataru isn't: tall, incredibly handsome, and quiet. However, the "handsome" part comes with a few major catches: Lum is immediately dismayed, as she dumped Rei
Rei’s introduction adds a new layer to the series’ dynamics. He serves as a foil to Ataru; while Ataru is "ugly" on the inside but human, Rei is "beautiful" on the outside but literal monster on the inside. Plus, his arrival marks the beginning of the "exes and rivals" trope that defines much of the series' comedy. Urusei Yatsura - Prime Video
If you thought Ataru and Lum’s relationship couldn’t get any more chaotic, think again. Just as things were settling into a "normal" rhythm of electrocutions and failed dates, the ultimate ex-boyfriend crashes onto the scene: , the handsome Oni shapechanger. Who is Rei?