A country town in early summer when cicadas begin to sing.When Ichika returned home from school, there was a mother crawling on the floor. "What should I do, I can't go to volunteer now..." Ichika, who wanted to see her mother suffering from her back pain, insisted that she would go and headed to the old man's house alone.The old man is an elderly person who lives alone and cannot live a daily life without support.But Ichika didn't know.That this old man was so terrifyingly irresistible that he set his sights on a young and naive age...