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The protagonist, referred to as , is a man who has lived a miserable adult life. Traumatized by a history of being bullied and humiliated by women—particularly by his childhood neighbor, Sera Narumiya —he finds himself unable to move on. His rock bottom occurs when he is invited to the wedding of Kasumi , the only woman he ever truly liked, forcing him to confront how far behind he has fallen compared to his peers.

The specific content found under this keyword appears to be part of a fan-submitted hentai ONA (Original Net Animation) entry, which has not been authenticated or acknowledged by any verified official source in the anime and manga industry. The search results indicate that the term is often used in community discussions to categorize adult content, rather than pointing to a mainstream, verified piece of media.