Sinopsis momentánea en inglés: A group of good friends from the girl's school (Takamine, Takasugi, etc.) travel to Hakone with their teacher (Kuwano), who is retiring at the same time, to deepen their friendship before graduation. Everyone has dreams for the future and a bright future ahead of them, but Sanae is the only one who is depressed as she has to make a marriage of convenience for the sake of her family. Osaie, on the other hand, has a dream to be a pianist, is talented, recognized by others, and has a bright future ahead of her.
The girls have successfully completed their graduation ceremony, but the real world is cruel. Sanae & Saegusa are best friends who share their joy and sorrow, but the person they fall in love with (Daijiro Natsukawa) is the same. And Daijiro Natsukawa is crazy about Sanae, but Sanae doesn't accept the offer because she's worried about Mie. As for Saegusa, she becomes jealous of Natsukawa Daijiro, who is in love with Sanae, and gradually becomes emotionally and mentally devastated after a suicide attempt.
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