event 1Umaru, The heroine of this story. She gets straight A's in every subject and everyone loves her because her beauty. While Taehei her brother knows all the truth behind those perfections. In home Umaru is himouto meaning she's a lazy Otaku. Outside she is a completly differnet.
event 2Syhyplhyn a rival to Umaru. It's really irony how she reacts because in each test score she gets is 99. Literally and meanwhile Umaru-chan get 100%. Ebina is a west girl meaning, inside she talks western and outside she's a incocent girl that doesn't talk that much.