Japanese citizenship for kids

Hi everyone,

I was born in Japan and am a Japanese citizen by birth. I now live abroad and have children who were born outside Japan. Unfortunately, I never applied for their Japanese citizenship or registered them at a Japanese embassy when they were born.

I’m wondering what my options are now to get them recognized as Japanese citizens.

Has anyone gone through this process before?

Is there an age limit for applying for citizenship through a Japanese parent?

Do I need to be living in Japan to do it, or can it be done through a consulate?

Any personal experiences or advice on which documents I’ll need or what steps to take would be greatly appreciated.

Thank you!