Kana, who lost her husband and raised her daughter Mayu, is currently dating a man named Satoshi. He's skilled in the nighttime activities and, above all, a gentleman. Kana had already made up her mind about him. So, Kana brought up 'It's time for you to meet my daughter...' To which Satoshi promptly replied, 'Sure, I'll go say hello.' The conversation went smoothly, and Mayu's meeting with him was successful too; everything seemed to be going well. Then one night, when Mayu was alone at home, Satoshi showed up for some reason…
