Deka Wanko (Japanese: デカワンコ) is a Japanese manga series written and illustrated by Kozueko Morimoto. It was serialized in Japan by Shueisha in the magazine You and was collected in 12 tankōbon volumes. The series follows the adventures of Ichiko Hanamori, a young woman who, while always dressing in lolita fashion, is also a homicide detective for the Tokyo Metropolitan Police. While inexperienced and often bumbling, she solves crimes using her sense of smell, which surpasses that of the best police dog. The title refers first, to the Japanese slang term for police detective (deka), and second, to a word play on Ichiko's name. Her name in kanji is 一子, meaning "one child", but her colleagues give her the nickname "Wanko", which both combines the Japanese pronunciation of the English word "on