Tsuyoshi Ōhashi.

mangaka

Japan, Born 1971

In short

Kaishain no Melody (Japanese: かいしゃいんのメロディー, Hepburn: Kaishain no Merodī; "Office Worker's Melody") is a yonkoma Japanese manga series by Tsuyoshi Ōhashi which was serialized in Manga Club. It won the 1998 Bungeishunjū Manga Award.

The essential Tsuyoshi Ōhashi

Kaishain no MelodyかいしゃいんのメロディーJapan