Love Tyrant (2017)

S1E6 Go to the Beach With Me? x It's Not a Matter of Knowing or Not

Summer break arrives, and Seiji, Guri, Akane, and Yuzu invite Akua on a seaside trip. Hoping to bond, Akane asks her to swim together, but Akua remains distant and aloof. That night, they attempt to change the mood with a beachside test of courage hosted by Guri—but her idea of a "liver test" turns out to be just that: a literal test of their livers.