Matoi Giboshi 擬宝珠纏

The oldest granddaughter of Giboshi Geparuto, who runs a famous sushi restaurant "Cho Kanda Sushi" in Kanda district. She is a relative of Ryotsu (their grandparents were siblings). She works as traffic police in Katsushika Police Station. Since she is also raised in a rural area, she is good at many traditional Japanese toys and activities that rival or even exceed Ryotsu's skill level.