Ms. Tengoku is a recurring character who appeared in the Forever Sophomores series. She was the student teacher in Tom, Trent, Willy, and Caillou's Geometry class, and taught alongside Mrs. Collins and Mr. Schaft from Season 32, up until Season 36. She debuted in "Another War is Brewing".
Ms. Tengoku was a helpful teacher. She would give the class helpful tips with their Geometry problems. She also got along well with Mrs. Collins, and enjoyed Mr. Schaft's sense of humor. Like him, she would argue with the troublemakers in her class. She began teaching in the class around Season 32, and continued to do so for the rest of the Forever Sophomores series, up until Season 36, when she graduated from Student Teaching and became a real Teacher, who teaches in a different class. Despite this, she would often visit her old class. She doesn't appear in Advanced Education, so her whereabouts are currently unknown.
Ms. Tengoku has fair skin, blue eyes, and long light brown hair, which is very straight. Her outfits vary throughout the series, but she mostly wears a long black coat over a maroon blouse, black trousers, and black shoes. Sometimes, the colors of her blouse and trousers are switched(with the blouse being black, and the trousers being maroon), she occasionally discards her coat, or her blouse is green instead of maroon.