In an effort to stop a famine, the Spear Hero had unwittingly inflicted a plague of plant monsters into an unsuspecting village, a mess that Naofumi has to clean up for him.
Later, the party stops to relax at a hot spring and Raphtalia and Filo have to work through their sibling rivalry to give their master a gift.
Tropes for this episode include:
- Alien Kudzu: The miracle seed sprouted into a monstrous vine that swarmed the surrounding area almost overnight, eventually growing poison and acid-spitting plant monsters and making the villagers falling ill with parasitic plant-growths.
- Botanical Abomination: The source of the Alien Kudzu is a monstrous tree with an eye in the center of its main flower.
- Enlightened Self-Interest:
- While not liking the idea of cleaning up after Motoyasu, Naofumi decides to stay and take care of the village's monster-vine problem when they offer him a reward.
- Raphtalia and Filo sell their hunted razorback to a group of villagers who were planning on hunting for it themselves, buying crafting supplies as a gift for Naofumi.
- Full-Boar Action: The Silver Razorback Boar is a giant boar monster that roams the mountains that the Hot Spring Town is situated in. Local legend claims that when settlers slew their first razorback, the springs miraculously appeared, and so every year the villagers would hunt for one for their town rituals. When Raphtalia and Filo encounter and defeat one, they sell it to the town in exchange for crafting tools for Naofumi.
- Green Thumb: After defeating the Bioplant Monster in the village along with its' Mooks, Naofumi unlocks the Bioplant Shield and Mandoragora Shield which offers him Plant Modification and Plant Analysis abilities. After falling asleep with the Mandoragora Shield equipped to gain Uptime with it and gain Mastery over the Plant Analysis ability, Naofumi uses it on the recovered Bioplant seeds the following morning to modify them into harmless fast-growing nutritious fruit-bearing plants for the village.
- Hot Springs Episode: The second half of the episode has Naofumi, Raphtalia and Filo spending a day at an inn at a hot spring town.
- Miss Conception: Raphtalia thinks that if she were to kiss Naofumi, it'll make her pregnant. This is justified, as not only is she Younger Than She Looks, but her parents were killed when she was very young and was likely never given The Talk.
- Nice Job Breaking It, Hero: The South West village was suffering from a famine, so Motoyasu ventured into an old temple where he heard there was a miracle seed... that would eventually plague the town with an unstoppable Alien Kudzu.
- Too Dumb to Live: The chest containing the magic seed that Motoyasu gives to the villagers had various warning signs about the seed's deadliness and he gave it to the village anyway. In fairness, he couldn't read the sign, due to the language barrier.
