Our Last Crusade or the Rise of a New World, Vol. 5 (manga)

Iska and his allies have finally earned themselves some glorious days off, so why is he still running into Alice at their vacation spot?! Still, there's only so much time to relax, as Iska urgently needs to find a way to conceal the fact that Mismis has become a witch! But while the Imperials might not know what to do, Alice's sister Sisbell may have some ideas...