Marilyn "Marilyn-chan" Aiki

About

A young girl who calls herself Lupin Jr's partner/sidekick. Marilyn has long, wavy black hair and is an Aikido master, despite having only shown her techniques once.. Her age is unknown but she has a well-endowed body. When she first appeared, Marilyn was in conflict with Lupin Jr, but began to cooperated with him from then on.