coly Inc. (Headquarters: Minato-ku, Tokyo; President and CEO: Anna Nakajima) is pleased to announce that a new stage play, 'Stand My Heroes' Season 0 - Metropolitan Police Department, Seo Research Lab Arc -, has been decided for production as the latest installment of the stage play adaptation of the app game 'Stand My Heroes,' which will celebrate its 10th anniversary in 2026. 'Stand My Heroes,' commonly known as 'Sumai,' is a dramatic romance puzzle game developed by coly Inc., where players live alongside modern heroes. The protagonist (player) has a special constitution resistant to certain drugs and joins the Narcotics Control Department, commonly known as 'Matori.' To solve complex cases, an independent investigative agency comprised of diverse personnel, the 'STand Alone National Department' -- 'STAND' -- recruits talented individuals, forming the core of the story, with a deep scenario unfolding within the app. The stage play adaptation of 'Stand My Heroes' had 19 performances last September at Theater Sun Mall, captivating many fans under the nickname 'Sumai Stage.' Starting this year, stage adaptations of the 'Season 0' series, depicting the past of the main story, have begun. The first installment, 'Season 0 - Matori, Tsuzuki Brothers Arc -,' is currently being performed to great acclaim at the same Theater Sun Mall until July 5 (Sun). Amidst this, the Metropolitan Police Department team announced the next work, 'Season 0 - Metropolitan Police Department, Seo Research Lab Arc -,' during the after-talk event on July 2. The Metropolitan Police Department team will see the continued appearances of Itsuki Yuki as Tsukasa Asagiri, Kosuke Shiraishi as Natsuki Kanno, Yuya Arai as Aoi Arakida, and Yusuke Seto as Yo Hattori. Furthermore, the Seo Research Lab team will make their first appearance in the stage play, raising expectations. As an additional cast member for the Metropolitan Police Department arc, Ryoko Tanaka has been cast as the female counselor, Mizuh