On May 12th, 2018, LibreOffice Japanese community had done our annual LibO event "LibreOffice Kaigi 2018" successfully, gathered around 30 people.
We had the Keynote from Mr. Tomaž Vajngerl, 6 long talks, 5 lightning talks, and Writer hands-on for end-users.
You can watch these videos on the YouTube playlist (most of these are in Japanese except the keynote and one lightning talk). And you can find slides on our event site.
Hope I'll write a recap article of the event here near future ;)