ESE is the credited original creator behind the manga and anime series Wanna Be the Strongest in the World!. ESE is a collective persona, described as the incarnation of the Earth Star Entertainment manga magazine Comic Earth Star, functioning as a writer for projects developed under the magazine's publishing model. In this capacity, ESE served as the story writer for the Wanna Be the Strongest in the World! manga, which was illustrated by Kiyohito Natsuki.

The manga was serialized in Comic Earth Star from March 12, 2011, to December 12, 2013, and later compiled into five tankōbon volumes published by Earth Star Entertainment. The story follows Sakura Hagiwara, a pop idol who enters the world of professional women's wrestling to avenge a fellow band member, combining the genres of sports and idol drama.

The series was adapted into an anime television series by the animation studio Arms, which aired from October 6 to December 22, 2013. The production credits for the anime list ESE as the original creator based on the manga. The anime was directed by Rion Kujo, with a screenplay by Kazuho Hyōdō.

As a creator identity tied to a specific publishing initiative, ESE is primarily known for this single work, which represents a cross-media project originating from the Comic Earth Star magazine's efforts to develop original intellectual property.