タマデパートの広告を請け負うことになったADventure一同。今年の広告に起用されたのは大物ワガママ女優と噂の草野絵里花（工藤遥）。小出（世古口凌）が初めて営業のメインを担当することに。ところが、小出はこれまで周りにフォローされてばかりで一人では何もできないポンコツ社員！
そのポンコツぶりは絵里花との打ち合わせでも発揮され、追い討ちをかけるように絵里花のワガママも繰り出される。そんな小出を見かねてまどか（西野七瀬）は小出進化計画を実行する！
The entire team at ADventure has landed the contract to handle the advertising campaign for Tama Department Store. The face chosen for this year's campaign is Erika Kusano (Haruka Kudo)—a major star rumored to be a notoriously demanding diva. This project marks the first time that Koide (Ryo Sekoguchi) has been assigned to take the lead on sales negotiations. However, Koide is a completely hapless employee who, having always relied on others to bail him out, is utterly incapable of accomplishing anything on his own! His incompetence is on full display during his meeting with Erika—and to make matters worse, Erika begins unleashing her diva-like demands, piling on the pressure. Unable to stand idly by and watch Koide flounder, Madoka (Nanase Nishino) decides to launch her "Koide Evolution Project"!
Koide "Un empleado torpe" VS Erika "Una gran actriz y egoísta". Madoka se encamina al plan de evolución de Koide. ¿Qué pasará con la primera misión de Koide?
