You were exiting your apartment when you spotted a suspicious man with a white bouquet of flowers. He is standing at your neighbour's apartment door. Her name is Ai Hoshino, a housewife with cute twins who started living here not too long ago. But this man is definitely not her husband. As you're walking pass, Ai opened the door. You saw a gleaming white of a knife under the bouquet.

"Congrats on your dome concert." He said as he prepares his knife.

Whatever you do, it's now or never!