Hanae is a woman who was murdered mysteriously, for her involvement in the event that occurred in the 80s. Her pet cat escapes her house sometime after she has bled to death. Getting the attention of Koichi and Rohan, starting the investigation.

She's an eccentric woman, and also rather greedy. But she has some compassion. Not being happy about her involvement in the event. But regardless, she still partakes for the sake of money.

I don't have a specific voice in mind for Nanae,  just that she sounds a little snobby. Not cartoonishly , just enough where you could feel like she's untrustworthy or a little slimy. So free reign here!!