The story follows three friends grappling with school, studies, and relationships. Kouki Uchiyama will play Takuya Amano, a boy who will move to Hokkaido after finishing middle school. Yui Ishikawa plays Haruka Kishi, Takuya's childhood friend. Daisuke Fujita plays Tsubasa Miyake, a mutual friend of Takuya and Haruka who attends the Eikoh Seminar school.
ふたり分の証明, Proof of Us, Futari-bun no Shoumei Proof of Two
