Ep. 2: OVA bundled with the sixth manga volume featuring a brother whose perverted behavior causes laughter

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This original video animation is included as a bonus feature with the sixth volume of the manga series. The content focuses on the comedic dynamic between siblings, specifically highlighting the brother's eccentric and inappropriate actions that serve as a source of amusement for the narrator. The release serves as supplementary material for fans of the franchise, providing additional character interactions and humorous scenarios not covered in the main serialized chapters. No additional plot details or specific scene descriptions are provided in the source metadata.