This character story becomes available in Chapter 7, Episode 1. You can find Kagura back in your guild building in Magnolia.[-] Obtain monster oil on Hakobe Mountain[-] Go give the oil to Kagura
The three marked monsters that you have to defeat are located in the northern half of the area. Simply hunt them down to obtain Rust-Proof Oil. Once done, head back to the guild and hand over the oil to Kagura to complete the quest.
A Mermaid on Stage
This character story becomes available in Chapter 7, Episode 1, after finishing the preceding character story.[-] Go see the client in CrocusFast-Travel
to Crocus and meet the client in the Clock Tower area. Talk to the large man there to learn the props needed for the play are missing.[-] Get the props back.
Next, talk to the three marked NPCs to learn where the culprits possibly are. Travel to the alley on the southwest portion of the map to find the bandit hideout. Defeat them to retrieve the props. Watch through the following cutscenes to complete the quest and recruit Kagura to your team.