Dictionary / Vocabulary / 買って出る
かってでる
to take upon oneself; to volunteer; to undertake; to offer (to do)
Also written かって出る、買ってでる
わざわざ憎まれ役を買って出るようだが、でも一つ聞きたいね。期待しているような客がもし一人もいなかったらどうすればいいんだ。
I may be playing the devil's advocate, but I have to ask, what are we going to do if we don't get all the customers we expect?