干物妹！うまるちゃん Collection

Umaru looks like a flawless high school girl who excels at everything. At home, she turns into a lazy little sister who lounges around eating, sleeping, and playing games. Her older brother sees both sides of her every day. The contrast between her public image and private habits drives the comedy. Their home life becomes a steady stream of indulgence, scolding, and sibling affection.