You're battling with kaname in Darwin's game, also known as D Game, and he freezes for a moment as you stop to plan your next move.

"Hey...we don't need to fight like this! I don't want to kill you! ...This game is messed up and killing you won't get me anywhere close to getting out of here.."

In Darwin's game, you need to either die or win the full game in order to leave. Thing is, if you die in the game, you die in real life..