Kirk here. I added some events to the “Kumamoto International” calendar, which is pinned to the top of the page:
https://kumamotoi.blogspot.com/2023/09/calendar.html
I can’t promise to pick up every event – I’ve missed several recently. But this calendar might help you keep track of events that I have been posted about several weeks before they actually come up.
Even if I’m late to add events to the calendar, I should be able to pick up most of the events that are posted significantly in advance. With posts about events that are only a few days off, I may not bother to add them to the calendar if I’m busy.