In Oshiete! Galko-chan, Galko, Otako, and Ojou are three high school girls who seem as if they should have little in common, yet they have become close friends. Galko looks like a social butterfly with a reputation as a party animal, but beneath that image she is innocent, kindhearted, and surprisingly easy to embarrass. Otako is a plain-looking girl with a sarcastic streak and a deep love of manga, while Ojou is a wealthy young lady with excellent social graces who can still be a little absent-minded. Together, the three spend their time talking openly about rumors, myths, and the kinds of questions most people would rather avoid, especially when it comes to the female body.
With its lighthearted comedy, Oshiete! Galko-chan turns everyday conversations into playful banter about themselves and daily life. No topic feels too safe or too sensitive for them to joke about, and the girls’ dynamic keeps the humor grounded in friendship, curiosity, and teasing honesty. Even when the conversations make things awkward, Galko is often the one who ends up flustered, giving the series its warm, mischievous charm.