This is a new character "Nekomimi Tenshi-chan".
She has ears and a tail, remnants of a cat that became an angel.
She is a curious and fluffy little sister-type girl.
Since she is on vacation in the lower world, she hides her angel ring with a hat.
She and Succubus-chan are good friends and often go out together, and they are on vacation together again this time.
Is Succubus-chan in her line of sight?