0 日本人の美徳が国を亡ぼす？日本の低生産性の根源/Japanese virtue ruins Japan? The source of Japanese low productivity 8月 16, 2019
0 神話と日本刀の故郷、出雲へ②「出雲大社」/Journey in Izumo, hometown of Mythology and Samurai Sword②“Izumo Taisha Shrine” 4月 13, 2018
