Nanako Dojima

Nanako Dojima is the daughter of Ryotaro Dojima and the half-sister of Yu Narukami, due to Ryotaro adopting him as his son.

At seven years of age, Nanako is also the youngest documented person in the world, in front of 10-year-old Ken Amada, who she happens to be dating. She is also the youngest person serving on a national government administration, serving as the Junior Secretary Of Commerce in the administration of Yu Narukami and Yosuke Hanamura.