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...