Usagi Drop Specials

うさぎドロップ

Four short episodes bundled with DVD/Blu-Ray.

Vol.1: Episode 2.5 "Aquarium of Leaves"

Vol.2: Episode 3.5 "Dear My Santa Claus"

Vol.3: Episode 6.5 "Full Blossom in the Sky"

Vol.4: Episode 8.5 "Way Home"

(Source: AniList.co)