Night Tail v.1.02 / ナイトテール

The two protagonists are Night Tail and Pure White (according to my shitty translator anyway...). Night Tale can be considered the "main heroine" as you mostly control her. Night Tale is fighting a secret war against the Incubi, demons who seem to possess humans and trap them in dream realms that can grow to abduct others if left unchecked. Night Tail, some friends, and her older sister are together working against a group trying to use the Incubi to create a dream Paradise, which they plan to grow by abducting more and more humans into it. Pure White gets sucked into the situation by their plans, lucks into some powers of her own, and works against the group herself, the focus swapping between the two heroines and the story progresses.