Oval appears solely in the animated feature *Futari wa Pretty Cure Max Heart: The Movie*. He is a Courageous Warrior dwelling within the Garden of Hope, a setting unique to this film.

Physically, Oval is a rounded yellow frog with a white underside and small, beady eyes. A distinctive tuft of pointed brown hair crowns his head. He wears a gold cape secured by an oval-shaped topaz gemstone.

In the film's story, Oval and his fellow Courageous Warriors—Round, Square, Marquis, Heart, Pear, and Trilliant—call upon the protagonists Nagisa Misumi (Cure Black), Honoka Yukishiro (Cure White), and Hikari Kujou (Shiny Luminous) to defend the Garden of Hope. Their objective is to stop a witch from the Dark Zone from stealing the Diamond Line, ceremonial jewelry worn by the Garden of Hope's Queen. Preventing this theft is crucial to maintaining the kingdom's balance, averting the resurrection of the Dark Lord, and stopping widespread destruction.

When the heroes arrive at the Garden of Hope, Oval and the other warriors first test their abilities through a confrontation masked as an assault. After verifying their identities and strength, the warriors formally seek their aid in protecting the Diamond Line.

Oval is absent from the *Futari wa Pretty Cure Max Heart* television series, other films, OVAs, spin-offs, and all subsequent Pretty Cure media.