When they were children, Shirabe Yamada encouraged her brother Minoru to become a mangaka, but years later, and now that she's a high-school-age streamer, she can barely stand him. Now a university student and amateur mangaka, Minoru does his best to keep his craft a secret from her, but on the day his manga is cancelled by the publisher, Shirabe accidentally discovers his studio at his room and that he's the…