Tetsu Ōkawa is a Japanese manga artist who worked as an assistant on Sakamoto Days before writing and drawing its spinoff series Sakamoto Holidays, based on a concept by original creator Yuto Suzuki.
Before creating his own project, Ōkawa served as an assistant on the mainline Sakamoto Days manga under Yuto Suzuki. That behind-the-scenes work with the series' characters and setting laid the groundwork for the spinoff he would go on to write and illustrate himself.
Ōkawa writes and draws Sakamoto Holidays, a slice-of-life spinoff serialized in Saikyō Jump since July 2024 in which Taro Sakamoto solves small neighborhood mysteries instead of facing assassins. The concept originated with Yuto Suzuki, and the series had reached two collected volumes by the time of its English-language release.
Tetsu Okawa is a Japanese manga artist who worked as an assistant on the mainline Sakamoto Days manga under creator Yuto Suzuki. That experience led him to write and draw his own spinoff series, Sakamoto Holidays.
Sakamoto Holidays is a slice-of-life spinoff written and drawn by Tetsu Okawa, in which Taro Sakamoto solves small neighborhood mysteries instead of facing assassins. The concept originated with original Sakamoto Days creator Yuto Suzuki.
Tetsu Okawa's Sakamoto Holidays has been serialized in Saikyo Jump since July 2024. Okawa previously worked as an assistant on the mainline Sakamoto Days manga before creating the spinoff himself.
Sakamoto Holidays had reached two collected volumes by the time of its English-language release. The series is written and drawn by Tetsu Okawa, based on a concept from original creator Yuto Suzuki.
No, Tetsu Okawa is not the original creator of Sakamoto Days; that credit belongs to Yuto Suzuki. Okawa is the manga artist behind the spinoff series Sakamoto Holidays, whose concept originated with Suzuki.

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