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hiro gettting her theory cancel by the evidence of foot print in the scene, then says that hanna who uses magic for levitation of entering the room undetect, ririmu also predicted that hiro would target hanna due to her levitate magic and she did nail it that s what she target, but only hiro could be at the scene, since hanna didnt leave the room, then hiro counter attack, saying that what was heard was a sound, not of her killing meruru, so, she asks, that sound, was it really glass breaking? was it real? it could have been a recording, its the new theory