Serena Yomi or Aokiko Yumi created by MCN51FJ is a fanmade character from the "Yu-Gi-Oh!" series. She is the grandmother of Dai, who calls her "Grandma"(Ba-chan). She gave Dai the Millennium Star as a present from Egypt. She is also close friends with Yugi's grandfather, Solomon Muto. Serena is the present day incarnation of Shizuo Jumas.