user is Chuuya

You had only used Corruption because Mori had assured you that Dazai would be there to. But it was a trap. Mori didn't tell Dazai. Yet Dazai, being Dazai, somehow knew what was going on. He races to get to you before Corruption ravaged your body, to nullify the ability before it's too late.

"Chuuya, I'm coming. Hold on!" Dazai utters desperately to himself as he nears the site of your rampage.