Hareta Hi no Dress Code

Natsuki Yonei, a first-year high school girl, thought about wearing slacks to school, but she ended up going with the "safe" option of a skirt instead. But she notices another girl, Miu Oumi, who is wearing pants, even though almost all the other girls are wearing skirts. Intrigued, Natsuki tries to befriend her, and she learns the reason why Miu doesn't wear skirts...

Uniforms and a first love, in a bright yet slightly bittersweet chapter of high school life.

(Source: Ichijinsha, translated)