In the season where sunlight pours down violently, the arrival of the gloomy 'summer'. Nanako was sighing to herself. The annual tradition of visiting her husband's family home—this year, she had to go alone because her husband was on a business trip. Waiting for such a Nanako were countless verbal abuses from her mother-in-law and sister-in-law, taking advantage of her husband's absence. Her tragedy did not end there, however. The preparations for the chilling 'lesbian training' were quietly proceeding…
