: Like the TV series, the OVA was produced by the animation studio Nomad .
: This episode serves as a side story to the 12-episode television series, Oretachi ni Tsubasa wa Nai: Under the Innocent Sky . Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuw...
: The title roughly translates to "Skin Color Rate Increased by 90%!?," indicating a heavier focus on fanservice and "ecchi" content compared to the main storyline. : Like the TV series, the OVA was
: The search for the ghost leads to a series of misunderstandings and typical "ecchi" humor involving the main cast. : Like the TV series