- Secrets make a woman: she knows both Conan and Ai's true identities but does not disclose them.
- Conflicting Personality: A murdering psychopath, but not purely evil. She allowed Ai to live because Ran was protecting her.
- Has a hint of tenderness: When she wakes up after knocking both Conan and herself out with the sleeping gas, she actually covers Conan with her jacket.
2. Miyamoto Yumi - The matchmaker gossip of the Metropolitan Police. Sonoko minus the obnoxiousness.
- A friend in need is a friend indeed: Gives "allowances" to Satou and Takagi when their got their pay docked after the Bullet Train Transport Case because they allowed a suspect to die .
- Not so perfect that her character becomes unbelievable: She is not completely selfless, she tricks Takagi into buying her the diamond hair clip she wanted. (Saying it's for Officer Satou, but Satou doesn't like shiny jewelry)
3. Kobayashi Sumiko - The kind but mischievous grade school teacher.
- Admirable dedication: sneaking into school in the middle of the night to rehearse for a parent teacher conference, not many of those teacher nowadays.
- Wish my teachers were like that: Introduces children in her class to new classmates using a mystery game, much better than the "stand in front of the class and introduce yourself" gimmick employed by today's teachers.
- Hiding place of last resort: Frequently hides under the teacher's podium. Very cute.

