One of the hallmarks of this show is having the girls get half-eaten by Giant Toads. New girl Sena gets the toad slime treatment.
Kazuma's band has to get used to an empty mansion and worry about Darkness' absence. Meanwhile, they got a cat and Sena called on them to get rid of Giant Toads they woke up trying to break Kazuma out of prison.
Toad slime. Always with the toad slime. Kazuma's Snipe skill may be very accurate, but it's not very powerful. Yunyun, whom we saw in the OVA, came to save the day.