Tomorrow i explain you where are they asami and takaba and yes their are in the panic room.
the panel where the masked men are is Asami's bedroom. you could see the fur blanket tjere clearly. so that is why they are inthe secret room.
so sensei forget that she mentioned that the panic room is soundproof it's the unique explanation! if not how they can hear : where are they? find them, and asami say to aki be quie! she forget this detail !?
the explanation of that part of the asami´s house are in tumblr https://www.tumblr.com/tagged/ayano-yamane
i just don't understand, i rerereviewed this chapter and compared those panels with this schema http://www.mangago.me/read-manga/you_re_my_loveprize_in_viewfinder/mh/v07/c046.5/27/ it's ok all seems ok, they came from the terrace, asami was in his room rush to the door overlooking the living room and began the shooting, aki was in a kitchen Lucky coz one of the assassins took another way to get around asami but aki was behind him to save his lover, "the swat team" came from the front door too, then i don't know where asami & aki are, definitely they are not in the secret room coz it's soundproof they was able to hear assassins speaking.... （￣へ￣）