Josuke had heard his friend needed him, and headed over right away, the tall teen looking as cheerful as ever with a bright grin on his face. For what would otherwise seem like a delinquent high schooler he looked and acted quite friendly, waving toward the others, though his focus was on Katsuya.

"Hey, heard you need my buddy. What'cha got for us?" he asked. As he spoke Crazy Diamond appeared behind him. As normal he was invisible to most, but he gave a curious look, and a soft 'Dora?' that would go unheard to anyone who couldn't see him.