SINNER: Sacrifice for Redemption

When fighting Chanel, every attack that she lands will in turn increase a meter which appears on your screen. Much like in Dark Souls with poison, as this meter builds you will then be inflicted with the status effect which will freeze you.

When this happens, you will more than likely be killed by Chanel, popping the achievement. Some luck may be required as you will need enough health to be frozen before the killing blow is inflicted upon you.