<a href="https://zh.wikipedia.org/wiki/C3AFA" class="extiw" title="zh:C3AFA">C3AFA</a> Text Logo.
<a href="https://en.wikipedia.org/wiki/Sotsu" class="extiw" title="w:Sotsu">Sotsu Co., Ltd.</a>
Extracted from <a rel="nofollow" class="external text" href="https://www.c3afatokyo.com/2019/kids-illustration-competition/file/C3AFATOKYO2019_kids_illust.pdf">Official C3AFA Tokyo Site - Kids Illustration Regulation</a>