シンエイ動画
is a Japanese animation studio founded on September 24, 1998, as "Synergy Japan" which originally split off from Studio Junio (which itself was founded by Toei Animation staff). In 2005, the company became associated with Shogakukan-Shueisha Productions, a subsidiary of the Shogakukan publishing company. In April 2017, the company became a subsidiary of Shin-Ei Animation.