At the turn of the millennium, Ginei Studio's dilapidated buildings are set to be demolished. Ex-employee and filmmaker Genya Tachibana decides to honor this occasion with a commemorative documentary about the company's star actress: Chiyoko Fujiwara, the reclusive sweetheart of Shouwa Era cinema. Having finally obtained permission to interview the retired starlet, an enamored Genya drags along cynical cameraman Kyouji Ida to meet her, ready to put his lifelong idol back in the spotlight once more. Hidden in this secluded mountain retreat is a thousand years of history condensed into one lifetime, waiting to be narrated. Chiyoko's recollections take them on an illusionary journey through Japanese cinematic history that transcends the boundaries of reality; the saga of her acting career intertwines with her filmography, the actors in her life blend seamlessly with the characters on screen, and the present melds with the past. Though the actress may have retired at the height of her career 30 years ago, the curtain on her life's stage has yet to fall.

With an actress mother, producer father, and rockstar brother, anyone would expect Izumi Sena to eventually enter showbiz himself. However, aside from a commercial for a wedding magazine when he was a child, Izumi has never been in the spotlight; instead, he aims to become a manga artist. But a decade after the shoot, the magazine calls for a 10th anniversary ad, requesting the original child actors for the project. This reunites Izumi with Ryouma Ichijou, now a popular actor who, much to Izumi's shock, has been in love with him ever since their first meeting! However, due to Izumi's feminine appearance and unisex name, Ryouma believed the boy was a girl and continues to do so to this day. Izumi's troubles are just beginning, because even after discovering the truth, Ryouma can't seem to shake off his feelings...

Dreaming of becoming a top-tier professional in the fast-paced, competitive world of voice acting, rookie Futaba Ichinose frantically scurries around, searching for auditions and performance sessions. Rubbing elbows with some of the biggest names in the industry, she tries to find her own unique voice and style. Along the way, she befriends two important allies: Ichigo Moesaki, an aspiring idol who claims to be a princess from another planet, and Rin Kohana, a cheerful child actress who tries her best to balance her career and school at the same time. Together, the girls brave the ups and downs of the entertainment industry—but as for Futaba, whose performance assessment at her agency is just around the corner, her career might be over sooner than expected! Sore ga Seiyuu! is a humorous and sincere celebration of the industry that gives anime its voice.

Takato Saijou has held the title of "Sexiest Man of the Year" for five years running. He is an accomplished actor, with 20 years of experience under his belt, and is aware his good looks are well above average. Proud of his career, Takato regards the title as an appropriate indicator of his success. But when his reign is ended by acting newbie Junta Azumaya, who debuted only three years ago, Takato's initial shock gives way to jealous hostility. Even in the new drama that he has been cast in, Junta seems to have suddenly surpassed him; snatching Takato's usual spot of lead actor, Junta continually manages to get on his nerves. Most infuriating of all are the bright smile and kind words that accompany everything Junta does. All this animosity comes to a head, however, when Junta catches Takato in a rather vulnerable drunken state. Endangering his own public image, Takato confronts the junior actor with harsh words and angry comments—an opportunity Junta takes every advantage of. With the famous actor Takato Saijou now on video picking a fight with a co-star, Junta has the perfect means to blackmail him. Asking the price of his enemy's silence, Takato is shocked to find that his motivation lies far from advancing his career; instead, Junta's terms are those that can only be realized in the bedroom!