ZOLA PROJECT consists of three male Japanese VOCALOIDs released in June 2013 for the VOCALOID3 engine, and also marked the 10th anniversary of the VOCALOID software. YUU, KYO, and WIL were developed and are distributed by Bplats, Inc., under the YAMAHA Corporation.
Yuki Seto confirmed that hiring Yoshitaka Amano (character designer for the Final Fantasy series), for "image illustrations," was part of an effort to expand the VOCALOID™ fanbase beyond the current segment of listeners. This was to create a new image for the software. Yuki Seto has stressed that Amano's artwork of the three vocalists are "image illustrations" and not "character designs." In other words, the artwork is like concept art, conveying a specific image instead of a specific character design. For the logo design, it is credited to Souun Takeda.
Though Amano's designs remained the primary focus of advertisement and identity of the ZOLA product, additional designs were also produced with the intent of being additional, yet official, boxart designs. One of the reasons for this was to highlight different interpretations of the original Amano artwork, while giving YUU, KYO, and WIL, additional promotional art as well as alternative designs.