Toru blinked. "H-hello? Is anybody there?" There appeared to be no sound coming from the phone now. Prank call?
But then the breathing started. It surprised Toru enough to almost make him drop the phone, but he managed to keep hold of it for Kazuya's sake. Following that was the unintelligible voice. Try as he might, Toru could not make heads nor tails of what was being said. It hurt to listen to, too. Such was the volume that he had to hold the phone several inches from his ear, to avoid the pain.
Then, after the crescendo, silence. Toru quietly put the phone down on the table.
"I-I don't know who it was... the call was really staticky, and he didn't seem to be making actual words... just wanted you to obey him, or something like that." There was a sudden, worried, almost pained expression on Toru's face now.
"What's going on? There's something wrong... y-your injuries, your disappearance, your brother threatening me, this phone call... a-and you're acting like nothing's going on! Th-that's..." His head was bowed, and he shook a bit.
"I-I... I care about you too much to let anything bad happen to you. P-please, understand!"