years old

She was fairly serious about her feelings for Haiji but still dumped him because he did pay attention to her.

About the relationship of the country-raised yankee (delinquent) Haiji Nakata and the young and innocent Kokoro Sakurazaka, who is half Italian and half Japanese.
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Kokoro arrives at Haiji’s village in Japan and soon breaks the ice with the villagers due to his friendly personality. Haiji looks out for the touchy-feely Kokoro who lacks life-skills despite his lucky financial situation, and soon Haiji can’t help but take care of the gentle Kokoro. When Haiji finds out what Kokoro’s real reason was to come to Japan, however…

Haiji's ex-girlfriend