第 9 集: 第四樁密室殺人事件，兩名嫌疑人對自身罪責感到猶豫不決。
2013年8月29日 播出
The fourth murder case is a locked-room mystery. Two of the primary suspects for the murder aren't actually sure if they did the dirty deed or not! Can Naegi piece the clues together to figure out what really happened in the game room? (Source: FUNimation)