“The Case of the Missing Hinata Apartment Money: A Mystery”
“Hinata sō Misshitsu genkin gōdatsu jiken Misuteri na” (ひなた荘密室現金強奪事件 ミステリな)

The monthly rent is due in Hinata House, but since Keitaro is too sleepy to pay attention, the money disappears! It falls to Kitsune and Su, the only ones with a steadfast alibi, to discover who the thief is.