四万十X-ray test (Patreon)

あんまり大したもんじゃないけど、次回のEXボーナスは15秒くらいの断面図テスト動画。

肝心なとこはまだ見えないよ！

It's not a big deal, but the next bonus is a 15-second cross-sectional test video.

I can't see the important parts yet!