Tsubasacon started as the brainchild of Charleston, West Virginia resident who was originally interested in beginning a statewide anime club.

[2] The Charleston Anime and Manga Society, Inc. was established soon afterward in order to take care of the business aspects of the convention.

The most cited reason was that Tsubasacon was held on Thanksgiving weekend, which conflicted with the schedules of many prospective attendees.

For the 2005 convention, images of three angel-like characters, collectively known as the Angel-chans, by Raven's Dojo were used to illustrate the Tsubasacon Website.

A new character design, created by Ricki Thompson, was utilized on badges and programs for the 2008 convention.

During the closing ceremonies, the winners of Tsubasacon's mascot naming and background story contest were announced, dubbing the character Mitsuki.