ONA
Selesai tayang
1 episode
Kensaku to Enjin no Happy Birthday
けんさくとえんじんのHappy Birthday
Sinopsis
An entirely 3DCG Happy Birthday episode of Kensaku to Enjin. It was meant to congratulate the viewer's birthday rather than it being the birthday/anniversary of the Kensaku to Enjin franchise or Yahoo! who owns the franchise.
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