A two-part new animation released with both Blu-ray/DVD boxes.

The original episode will serve as a bridge between the second and third season.

After the capture, Hajime was worried about the farewell to Miu that would occur when the trip resumed. Hajime and his friends were talking about "The Seven Great Legends of Elysen" as a memory before they left for the trip, but all of them were missed. However, in the final seventh adventure, he encounters a mysterious giant creature and is blown into the world of a devastated city! Hajime, who started to search for the stray Mew, fulfills a miraculous encounter there.

As a first-year student of the renowned Hyakkaou Private Academy, Mary Saotome knows her future is set for a one-way cruise to the top...That is, until an encounter with an old-classmate-turned-housepet throws the newbie princess into the world of gambling! Can a normal girl like Mary make friends and survive debtless through only wit and luck?