Sumikko Gurashi Movie 3: Tsugihagi Koujou no Fushigi na Ko

Prequel

Sumikko Gurashi Movie 2: Aoi Tsukiyo no Mahou no Ko

Sequel

Sumikko Gurashi Movie 4: Sora no Oukoku to Futari no Ko

Side Story

Sumikko Gurashi: Sorairo no Mainichi