OVA
Description
Cacao holds the position of holy virgin, first appearing as a supporting character in "VS Knight Ramune & 40 Fire." Alongside Parfait, she acts as a shrine maiden guiding protagonist Lamunade, utilizing a specialized pendant for Pendulum Dowsing to locate critical objectives like Otama Gates. Despite a timid personality and occasional obliviousness, her small stature belies surprising combat prowess.

Her role deepens in the OVA "VS Knight Ramune & 40 FRESH" ("Knights of Ramune"). As a full holy virgin, she wields enhanced magical powers requiring bodily freedom for peak effectiveness, leading to frequent nudity during spellcasting. Under Master Follower's orders, Cacao and Parfait embark on a vital mission to find the Fourth Warrior Ramunes, joined by young Lemon and spiritual advisor PQ.

Their quest leads them to the Giga Genos spacecraft, where they discover Ramunes IV exhibiting cruelty. Exploiting Cacao's devotion to the Ramunes lineage, he attempts to rape her at a lakeside meeting. This trauma, interrupted by Electone's android intervention, becomes pivotal. Subsequent revelations expose this Ramunes IV as an impostor installed by Don Vodka until the true heir could be found. Don Vodka clarifies the impostor's goal: activating the giant mecha Dark Knight to annihilate a planet.

Cacao fights against the impostor and Electone. After the Giga Genos crashes and Don Vodka dies, she joins the assault on the activated Dark Knight. Inside its control room, with Parfait unable to halt the destruction, Lemon is revealed as the true Ramunes IV. Lemon commands the Dark Knight to stand down, saving the world. A post-credits sequence teases future adventures titled "Knights of Lemon."

Cacao's origins, family, and activities beyond "40 Fire" and the "FRESH" OVA remain undefined. Her relationships center on her professional partnership with Parfait and protective dynamic towards Lemon during their mission. Cocoa Arara, appearing in "NG Knight Lamune & 40" as Milk Arara's sister, is a separate character despite the similar name.