[ When Ishimaru steps out of his room, he'll see messily-wrapped package by the side of his door. Inside, there's a three-tier desk organiser (1, 2) where he can put his writing tools, notepads, and the like. In one of the boxes, there's a card that says: "Merry Christmas. - M" There are also seven wooden pieces in a plastic, which includes a paper that says: "It's a puzzle. Try to assemble them into this. [Drawing of a cube.]" ]
⏩ xmas day