One day, Atsushi was informed that his aunt Mikan, who lives alone, had caught a cold and taken to her bed. Since his mother was busy, Atsushi decided to go take care of her instead. He immediately visited her home and found that Mikan was in worse condition than he had expected. Struggling with the unfamiliar task of nursing, time passed quickly, so Atsushi decided to stay the night. When he went to check on Mikan while she was sleeping, he unexpectedly became excited by her sweaty, sexy appearance…
