Koinobori
<a href="https://en.wikipedia.org/wiki/ja:User:Skink" class="extiw" title="w:ja:User:Skink">Skink</a> at <a href="https://en.wikipedia.org/wiki/ja:" class="extiw" title="w:ja:">Japanese Wikipedia</a>
<span class="int-own-work" lang="">Own work by the original uploader</span>