Touya is now engaged to Yumina, Elze, Linze, and Yae, and he's enjoying his second life in another world as the five of them complete an extermination quest for mythril golems in order to raise their adventurer rank.

Leen notifies Touya that's she's discovered another ruin of Babylon, so they head to the Rabbi Desert in the Burning Kingdom of Sandora. Along the way the discovered a group of stranded people under attack by crystalline monsters known as the Phrase.

Touya discovers a new ruin of Babylon, the Alchemy Ward of Babylon, he goes through the administrator's compatibility check and becomes the Master of Flora.

Touya rescues a girl in the forest, and while the technology of the Alchemy Ward is able to completely heal her, her memories remain lost and she's unable to remember her own name and how she got so injured. At her request, Touya names her Sakura.

The group discovers the Tower and the Rampart of Babylon. Touya also completes the usual registration with their administrators, Noel and Liora. Meanwhile, there's sudden news from the Kingdom of Belfast that Queen Yuel has given birth.