Peter Grill and the Philosopher's Time manga volume 12 features story and art by Daisuke Hiyama.

Sent on a doomed quest to find a phoenix stone for their marriage ceremony, Peter and Luvellia journey to an underground casino. But when Luvellia loses a game, she’s kidnapped! Peter needs to save the girl, thwart the villain, get the stone, and then fend off the locals in a visit to Ogrestan, where Lisa and Mimi are waiting. This time, he’s all in!