Nnnnnnot sure how much Sonic would invest in a rivalry? He's already got a rival. Okay, sure, Saitama pretty much ignores him BUT STILL. jfajdf I feel like I'm going across as so disinterested, but I'm just trying to figure out how to get Sonic interested since he is... generally stand-offish and a pissbaby. It's hard to get him into things that don't directly interest him, and another ninja is like

One part "I MUST ASSERT MY DOMINANCE AS THE ALPHA NINJA," one part "lol whatever I don't care, I'm the best anyway, everyone else is beneath me," and one part "I am a loner and I don't want friends, go away."

He's such a complicated pain in the ass orz