Ayumu

This is usually a boy's name, but it's a very unisex name, and I think it would fit any person younger than seventy. I like it.

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On the other hand, "Ayumi," which is similar to this name, has a more girlish nuance to it.

I really think this is a beautiful name Xd. The meaning's cool.

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I don't know if it's better for a boy or a girl though. Maybe both?