In the Beginning! Monster Farm: Enbanseki no himitsu : Season 1 Episode 1

Genki is a young boy with an ordinary, dull life. That is, until he gets a new game in the mail. He soon gets pulled in and must now fend for himself within the game. He soon comes across two friends, Suezo and Holly. But, will they be able to stop the terrible monster, Moo?