Shit. When he heard Kachan, that was all he needed to hear. Izuku didn't even hear Denki at first. He jumped about five feet in the air, then scrambled to back up and wound up tripping on something on the floor. He scooted back in a hurry and his head hit the coffee table, a bit hard, causing Deku to let out a Yelp of pain.
Quickly, realizing how late it must be, he clapped his hands over his mouth. In a frantic motion, he jumped to his feet again and bowed low and deep, many times over. "Gomen, sorry, gomen," he repeated, frantically. "I didn't mean to interrupt. I just saw you two sleeping and thought you must be cold, so brought you a blanket." His eyes went wide as he shifted, looking back and forth between the two. He had never seen Kachan get so relaxed and Midoriya gulped.
"I...I should go. I mean, to a different dorm...maybe tomorrow morning, because I think it's late. Maybe it's early. I don't really know what time it is because I haven't slept yet. I've been trying to get homework done and came pretty close to finishing my assignment. I just...I...are you two....sorry! That's...I shouldn't ask...I'm sorry!" He jumped to his feet, then, blushing bright red.
As he did so, out of a sign of respect to the two friends before him, Midoriya dropped to his knees in a full dogeza position. He felt horrible about intruding on them. This was their time alone and here he was, babbling still in rapid fast language. He spoke in a mixture of English and Japanese, unable to quite make his words completely intelligible.