Best friend of Mouri Ran, Edogawa Conan sometimes has to knock her out with his stun gun watch to use her as "Deduction Queen Sonoko". Because of this, Sonoko has claimed to be a great high school detective in her own right. She acts very boy-crazy, and often mostly thinks about trying to snag the "perfect boy". Sonoko eventually falls in love with Kyougoku Makoto.