Shin Arakawa is a Japanese manga artist known primarily for illustrating the manga adaptation of the light novel series Magical Buffs: The Support Caster is Stronger Than He Realized!. In this project, Arakawa is responsible for the artwork, while the original story is written by Haka Tokura, with character designs provided by Eiri Shirai. The manga adaptation began serialization on Futabasha's Gaugau Monster website in September 2021. The series has been collected into multiple tankōbon volumes, with an English-language release distributed by Seven Seas Entertainment.

Arakawa was twenty-five years old when a French publisher, Editions Delcourt, profiled the artist in 2024. Before working on Magical Buffs, Arakawa gained early recognition by publishing artwork online. The artist's debut manga was titled Bad Luck Witch, also known as Boku to Majo no Jikan, with its first episode published in April 2011 in the magazine Jump Square.

The anime adaptation of Magical Buffs: The Support Caster is Stronger Than He Realized! is scheduled to premiere in January 2027. The production is being handled by the animation studio J.C.STAFF. For this adaptation, Shin Arakawa is credited as the manga artist, distinguishing this role from that of original light novel author Haka Tokura and character designer Eiri Shirai. As of March 2026, the original series had surpassed 3.5 million copies in circulation.