A man who came to Tokyo to attend university was attracted to his beautiful neighbor. After a while, she became a married woman and her name was Aina. One day, I find a smartphone in the hallway where my girlfriend always goes, and when I bring it to my girlfriend, Aina, I find out that her husband is busy and seems lonely. The next day, her smartphone is still gone, so he goes to her room again to deliver it, but...
