The manga's creator, [Creator's Name], skillfully crafts the characters' personalities, making them relatable and endearing to readers. The protagonist's reactions to Utouto's antics serve as a catalyst for the story's comedic tone, while also highlighting the complexities of sibling relationships.
Then search Japanese sites (Pixiv, Syosetsu, Nico Nico) using the kana version. uchi no utouto maji de dekain %C3%B1ame manga