The official website for the live-action film of Aya Nakahara‘s Otonanajimi (Adulthood Friends) manga posted the film’s teaser trailer and first poster visual on Monday:

The tagline in the poster reads, “In a 20-year mutually one-sided relationship!?”
The manga’s romantic comedy story centers on childhood friends Kaede Kagaya and Haru Aoyama. Ever since they were four years old, Haru has been helping out Kaede, and Kaede has held a secret crush on Haru ever since — two decades later. But now, thanks to a different girl making a pass on Haru, and the entrance of a different male childhood friend named Iori, things might finally start moving in a romantic direction for Kaede and Haru. (The manga’s title is a wordplay on the Japanese words otona [adult] and osananajimi [childhood friends].)

Mizuki…