In a busy trade city, Leicester Maycraft's band of adventurers gather to watch a meteor shower; they get more than they bargained for when one of the meteors hits, setting off an unusual chain of events.

As Oasis adjusts to life with Agnes and Minette, the grand duke of Ert'Aria asks the clan to investigate his treasure chamber, which has been plagued by a mysterious presence ever since the meteor shower.

After Leicester and Agnes propose a quest to gather mysterious Black Rainbow Flowers, Chelsea gets lost and Carina and Leicester are attacked by a shadow-dwelling monster.

When the gang sets out in search of hot-springs crystite, their quest leads them into an abandoned mine; deep within a hidden shaft, they find a mysterious gemstone that may shed light on recent rumors.

When Minette and Garnet head to the marketplace to gather the ingredients needed for dinner, an encounter with a stray cat and a run-in with Chelsea could keep the food from making it to the table.

Clan Oasis provides security at a party thrown for the Sacred Knights; as Leicester and Nick patrol the grounds, Agnes and Minette entertain their fans; an uninvited menace prepares to crash the festivities.