While exploring the 19th Floor dungeon, Bell meets a young vouivre in distress who is capable of speaking, and out of pity for her, takes her home with him, despite his companions' protests. Once learning of the situation, Hestia decides to let the girl stay with them and they name her "Wiene". Wiene then spends her days bonding with the members of the Hestia Familia while Hestia sends Welf, Mikoto and Liliruca to gather more intel about monsters with intelligence, which brings the attention of a young elf girl from an unknown party and the Hermes Familia, who is investigating the matter by Uranus' request.