MrMonk
Member
Well since her grandpa is Dr. Shinigami maybe Natsumi's backstory will be explained. He can't really be her Grandpa then...
PLOTTWIST
Narutaki is Really Natsumi's dad.
Indeed. This was my guess long ago in the Decade rumor thread. Narutaki is too concerned with Natsumi for him not to be related.
I'm guessing though that not only is she related to Narutaki, but she's also related to Grandpa/Shinigami. The son realizes this is not what he wants for his family, so he attempts to break away, only to find that his father has kept his daughter.

