Nekomata ~Kuroneko Hen~

Riku is a university student. One day, he picks up two stray cats and starts living with them. He enjoys his life with them, but one night, he is hit by a dumper truck and loses his consciousness. When he wakes up, there are two girls in front of him looking into his face. "We're your cats. Please take care of us with responsibility." Yes, his cats have become humans. Like this, their strange life begins...