あの頃の青い星 (Series) favorite_border

[DeepL Translation - needs review] One day, an ordinary high school girl, Umi Kakimoto, falls in love at first sight with a beautiful girl in the next class, Akira Segawa. Umi is puzzled by her feelings, but she hopes to become friends with Segawa, who has a mysterious air about her...

(Translator: DeepL)