OVA
Description
The character "Miniroba" is exclusively identified as a Mini Donkey across all media. Director Naoyoshi Shiotani personally designed this creature after encountering a photograph of a fashion model walking a donkey. Its distinctive physical traits include a small stature, long eyelashes, downward-gazing eyes described as "cocky" yet cute, a prominent mohawk, and an oversized diaper or nappy noted as reminiscent of Tokyo canine fashion trends.

Miniroba enters the narrative when Yuudai intends to gift his girlfriend Chizuru a rabbit but mistakenly receives the donkey instead. The creature immediately escapes its box, igniting a frantic chase that separates the central couple. Its uncontrolled movement through urban environments directly triggers key plot developments, including misunderstandings between the protagonists and their eventual convergence at Tokyo Tower. Miniroba functions as a catalyst for resolving the couple's romantic uncertainties, actively disrupting their stagnant relationship dynamics.

Symbolically, the Mini Donkey embodies chaotic intervention. Production materials describe it as a "Dionysian agent of change and anarchy" or a "hairy Cupid," emphasizing its role in breaking the protagonists' emotional impasse. Its intrusion forces confrontations with their respective insecurities—Chizuru's history of failed relationships and Yuudai's shyness—effectively bridging the gap between their isolated perspectives. The narrative frames its chaotic presence as necessary for overcoming relational stagnation.

An anecdote from production notes indicates initial resistance to the character's design, with a "terrible silence" following Shiotani's presentation. Acceptance reportedly hinged on a single team member finding it cute, narrowly preventing the character's abandonment. This underscores its unconventional narrative role as a non-anthropomorphized, whimsical element within a realistic romantic setting.

No canonical backstory, origin, or development exists for Miniroba beyond these events. It appears exclusively within the OVA's Christmas timeframe, with no references to its existence before or after the depicted incidents. Its actions remain confined to driving the dual-perspective plot toward resolution without exhibiting independent character growth or motivations.