Actually, it occurs to me that it's probably been a nice while since we last dropped by Renko and Maribel's place, isn't it? We've had time to visit Patchouli, then travel to Hina's, meet with Nitori, leave the village entirely, the fly all the way back to the shrine, drop in on Aya, and come back down this way. Maybe it wouldn't hurt to try knocking on their door again before we wander around the forest looking for them?
>About how long has passed since we last saw Renko?