I remember the female lead wear kimono and a beautiful young woman with long hair. She have sad and stoic look

i think the story was about a person who will lose their memory in the town that they live(some supernatural thing), and the female lead lover, our mc, the male lead somehow lost his memory about her.

the male lead was a young man that seems know her from somewhere but she tell him to move on and say they never know each other with sad face.

anyone know it ? this is a old manga, below year 2010 i think, maybe around year 2004-2010

It sounds like Kuutei Kaiko Toshi.
If that's not the title you're looking for, can you provide more details about the story you read? Like, what genre was it? Was there anything else that was as important as amnesia as a theme in it?

[img]https://i.imgur.com/6MBFpsv.png[/img]
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Quote from Bog Initiate

It sounds like Kuutei Kaiko Toshi.
If that's not the title you're looking for, can you provide more details about the story you read? Like, what genre was it? Was there anything else that was as important as amnesia as a theme in it?

yes this is it

thank you