Heisei Haizanhei☆Sumire-chan summary: Former unsuccessful idol, current Pootaro's "Sumire-chan" is 31 years old. Defeated by the fierce competition in the entertainment world and beaten down both physically and mentally, she spends her days lounging around in her dilapidated apartment. Her cousin Yusei, a first-year high school student, notices her and offers her a chance to make money. "Your body's fine, so let's release a doujin gravure photo book." Will Sumire-chan really get her revenge in the Reiwa world? Stay tuned!