Beyond the Clouds Vol. 4 (manga)

Mia and Theo’s erstwhile new friend Nora was kidnapped by a band of thieves, but with the help of the little lumiferret Tama, the pair managed to find the kidnappers’ lair! Unfortunately, the operation ended in disaster when, in a panic, Mia again caused a monstrous cat of darkness to appear. After raging out of control, the beast only disappeared once she lost consciousness. Now, though the worst has been avoided, Mia feels guiltier than ever towards Theo for what she’s putting him through…