If I had to guess, I'd say this is a parody of old-school PC-98 Agatha Christie-esque games. Appropriate, since the Murder at the Kogetsukan event is a genre-shift to those.
Relationship Chart...I'm sorry, but I don't want to explain it again. You'll see soon enough.Direct quote from Part 1 of the Kogetsukan Satsujin Jiken event.Blue: Relationship ChartGreen: SummaryYellow: News & WeatherRed: Items
