Wolf Children: Ame & Yuki (light novel) - Hosoda Mamoru, Yuu Yuu

When Hana falls in love with a young interloper she encounters in her college class, the last thing she expects to learn is that he is part wolf. Instead of rejecting her lover upon learning his secret, she accepts him with open arms. Soon, the couple is expecting their first child, and a cozy picture of family life unfolds. But after what seems like a mere moment of bliss to Hana, the father of her children is tragically taken from her. Life as a single mother is hard in any situation, but when your children walk a fine line between man and beast, the rules of parenting all but go out the window. With no one to turn to, how will Hana survive?