Hatena Blog Groups

Join groups to connect with bloggers who have similar interests!

A modern and easy to use blogging service.

Hatena Blog Groups  >  Sports  >  Martial Arts

Martial Arts

Official Group

Twitter Facebook

Hatena Blog

Updates/Notices/Help

はてなブログの活用事例

Other Services

日本語 English
Download on the App Store Get it on Google Play
Copyright (C) 2001-2022 Hatena. All Rights Reserved.
Blog your own life story.