All-Purpose Cultural Cat Girl Nuku Nuku (OVA)/YMMV
- Designated Villain: Akiko is not so much a villain as she is a Mama Bear insistent on getting her beloved son Ryuunosuke back. Plus, the description at the top mentions that Nuku Nuku is a stolen prototype owned by her company, after all. These provide reasonable motivation to pit her against the title character. Her antagonism is generally just played up for comedy.