In late August, the seventh race of the Super Formula was held at Mobility Resort Motegi in Motegi, Tochigi Prefecture. Super Formula is Japan's highest and fastest formula racing series. It's a high-level world with speeds second only to F1.

Early in the morning in August, men could be seen loading large heavy equipment and materials onto trucks. ``Okazaki Construction Co., Ltd.'' is a company based in Fujieda City, Shizuoka Prefecture that makes a living in general construction (general civil engineering construction and civil engineering).

A large garbage processing facility located in Atsugi City, Kanagawa Prefecture. Inside the factory, enveloped in the hot summer heat, I saw a large truck carrying a large amount of garbage. ``Best Trading Co., Ltd.'' is a company that operates an industrial closure business.

A residential area somewhere in Tokyo. Under the scorching sun, there were men sweating and hardening the asphalt into the ground, so hot that steam rose. OPEN Co., Ltd. is a civil engineering and construction company founded in 2014 and headquartered in Haneda, Ota-ku, Tokyo.

Kaminoyama City, Yamagata Prefecture. The long-established cardboard manufacturer ``S-Pac Co., Ltd.'' is located in this land rich in nature. The company was founded on November 11, 1923 as a woodworking business, and as time passed, the material changed from wood to cardboard.

When I looked up at a construction site in Fukuyama City, Hiroshima Prefecture, I saw craftsmen hard at work on the roof, bathed in the bright sunlight. The uniforms and helmets they wear have the distinctive "FUJII KAWARA" logo. Fujii Seikawara Kogyo Co., Ltd.'s founder, Kuichiro Fujii, began making tiles in Miyuki-cho, Fukuyama City about a century ago.

Innoshima Island is located in the Seto Inland Sea in Onomichi City, Hiroshima Prefecture. There is the Innoshima Industrial Park located facing the coast. The main industry is shipbuilding, and there are various factories related to it. Among them is ``Shin Matsuura Sangyo Co., Ltd.''.