Kengo had opened his mouth to respond again, but Ryusei's sudden close proximity seemed to stop his thought process completely. He merely stared at the other, finally looking at him again. Kengo shut his mouth again, pressing his lips together as his eyes searched Ryusei's face for any sign of exactly what the other was up to without having to directly ask him. His eyes widened a bit as Ryusei leaned in, Kengo's hands going up to grasp Ryusei's wrists without thinking about it. Though Kengo was moving as though to pull him in, he'd pressed his back more against the wall, squirming a bit again. It really seemed as though he couldn't keep his attention off of Ryusei now.

There had to be some sort of response he could give. Something -- but nothing came to mind. There was nothing on his mind at this point, except for making sure that he continued to hold Ryusei where he was while he struggled to think of something.

"I don't know..." It was the only response Kengo could come up with, hoping it would be enough to keep Ryusei there.