※Super-Kamiokande is located 1000 m underground.
Artist's commentary
Hang in There, Kogasa-san 2188
In fact, just before this, there was a sudden misfortune with my relatives, so I went back to Kōchi for a day, and I was in a tough spot when it wasn't certain whether the plane would fly in the Kantō snowfall.
I switched over from my planned last-flight departure to the first flight of the day, but they all done flew, din't they! :-)