What? He deserved that vicious beating!

Dr. Chace Stevenson revolutionized the medical industry when he invited the mother of a young victim patient to observe critical surgery up close. As she did so, the Doctors — Stevenson with his team of Nurse Cadildo and Nurse Stevenson — caused even more massive internal damage from within that could not be possible from external beatings alone.

The 22 year old Dr. Stevenson is such a genius, that he was able to perform this surgery with no prior medical training, and qualified via knocking out the head surgeon before him. Hence his name — Chrusher — is further solidified.