Gakkou demo Ouchi demo Oshiete Kurenai "Okane no Real" Okane no Compass

Mashiro, a second-year middle school student who loves to shop. She finds a "lucky bag" of random clothing at a Western-style clothing store that says the contents inside are worth 30,000 yen (about US$227) but is being sold for 3,000 yen (about US$22.70), so she buys it. She's excited to see if she ended up with a good deal, but it doesn't seem that way, and she wonders why. The manga will help to teach "lessons about money that you won't learn at home or at school."

(Source: Kodansha, translated)