The Brawl is over, and Kanami has finally reunited with Lastiara and the others as himself. Now a band with a single purpose, they take to the seas on their new ship, the Living Legend, to evade their pursuers and hunt down Palinchron back on the mainland. Only this ship is a real powder keg, with a party primarily composed of girls who are major firebugs and then some! Moreover, Kanami has to grapple with the feelings more than one of those girls harbor for him, not to mention the one he might have a crush on.

What's more, while dungeon diving to gain the strength to defeat Palinchron, Kanami bumps into a mysterious girl who reminds him of...Hine?!

"Hello, nice to meet you. My name is Wyss Hylipröpe."

Who, or what, is this girl? And what the devil is the Dungeon, for that matter? Kanami ventures into the depths once again in search of answers...