Hane ~plume~

Hane ~plume~ (はね～plume～) is the fourth episode of the 2005 anime series Air.

Synopsis
Kano strangles Yukito in her trance-like state near the shrine hard enough to leave a mark before falling unconscious. Back at the clinic, Hijiri apologizes for Kano's behavior and explains when and how Kano's unusual symptoms started, with a single bright feather at the shrine.