Himouto! Umaruchan -

: Umaru's shy friend and neighbor who is unaware of Umaru’s home persona.

: A classmate with a fierce appearance but a shy heart who accidentally discovers Umaru’s "inner" form, leading to a unique friendship. Himouto! Umaruchan

: Once home, she transforms into a "chibi" version of herself, donning a hamster hoodie and indulging in video games, anime, manga, and junk food like potato chips and cola. Key Characters and Dynamics : Umaru's shy friend and neighbor who is

: A hyper-competitive, boisterous classmate who views "Outer Umaru" as her primary rival. Real-Life Inspiration and Legacy Himouto! Umaruchan