If you're looking for manga similar to $100 is Too Cheap, you might like these titles. All recommendations are made by Anime-Planet users like you!
One day, while enjoying a nice cup of tea, the fanous detective, Amaru Hebizuka, is called to a girl's boarding school to investigate a crime. Four schoolgirls have recently been found dead in the dormitories with only one common factor: a teddy bear missing one limb has been found next to each victim. Now along with his assistant, Shiro, Hebizuka must unmask the culprit
Fourteen-year-old Nico spends her free time on a cell phone-based dating service, but not for the reason you'd think. Hoping to someday become a fortune teller or maybe even a spy, the girl uses the dating service to determine what people are like merely by listening to the sound of their voice, and soon, she manages to accidentally befriend a Yakuza boss. Now Nico has the opportunity to use her curiosity, intellect, and keen sense of hearing to foil the schemes of kidnappers, crooked athletes, and forgetful assassins - but is it a good idea for a junior high school student to work for the Yakuza?