An Irresistible Condition

Just as Rhode expected, Erin started investigating his younger sister after their meeting immediately. However, the result of the investigation left Erin increasingly puzzled as she couldn't even figure out her name, not to mention her true identity. During their first interaction, Rhode's younger sister didn't mention her name and Erin neglected it as she was overly shocked (this went to show just how flustered Erin was back then). Thereafter, when Erin thought about it, she felt incredibly depressed. But she later realized that there was something even more depressing.