These shorts, included in the Blu-ray and DVD releases, take place in a timeline with multiple Umaru-chans.
Up to EP 13To Heart: Remember My MemoriesAnime
Up to EP 1The Place Promised in Our Early DaysAnime
Up to EP 13My Wife is a High School GirlAnime
Up to EP 1Zettai Karen Children OVA: Aitazousei! Ubawareta Mirai?Anime
Up to EP 1Aria the OVA: AriettaAnime
Up to EP 1Children of the SeaAnime
Up to EP 1Sakura Taisen: SumireAnime
Up to EP 1Dragon Ball Z: Cooler's RevengeAnime
Up to EP 6Maria Watches Over Us: PrintempsAnime
Up to EP 12Juni Taisen: Zodiac WarAnime
Up to EP 1KADO: The Right Answer - NinovoAnime
Up to EP 1Wake Up, Girls! Seishun no KageAnime