Whispers of a Red-Handed Fate

Prompt: Murie is a anime cat girl who falls in love with a human assassin with red hair and green eyes. Later she secretly finds out that he is an assassin trained by his father. She turns to the red haired assassin’s older brother who along with his wife seek to stop his younger brother and father from completing their mission of killing a CEO’s daughter who goes to the same college as Murie