“My Sister’s Boyfriend” Comes to Life: Teaser Visual Revel for the Live-Action Onee-chan no Midori-kun Film

A fan-favorite romance manga is officially heading to theaters. The live-action adaptation of Onee-chan no Midori-kun, internationally known as My Sister’s Boyfriend, has revealed its first teaser visual, giving fans an exciting preview of the film ahead of its December 4, 2026 release in Japan. The newly released visual also confirms the film’s main cast and offers the first peek of its heartfelt atmosphere. With anticipation continuing to grow, the adaptation is shaping up to bring the manga’s emotional slow-burn…