センチメンタル キス (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Yuna Natsukawa lives with her busy mother, a junior high school teacher, and her rebellious junior high school sister, Nana. She is busy with her part-time job and housework, but one day, she meets a beautiful younger boy because of a certain problem...?　One day, she meets a beautiful younger boy...? A destined love that reveals everything is about to begin... [Also Included] Boku ni Hana no Melancholy Extra Edition

(Translator: DeepL)