Cancer Police: as Long as I Don't Close My Eyes, I Won't Die

A police officer with terminal cancer that had metastasized throughout his body was shot in the heart while chasing a fugitive... "Oh, am I finally free... That's fine..." Ding! Cancer cell phagocytosis system has been activated Ding! Restoration lv1 experience increased by +100 Ding! Cell hardening lv1 has been unlocked 3/1000 Ding! Tetanus immunity level 1 has been unlocked 5/1000 Ding! High temperature adaptability level 1 has been unlocked 3/1000 ... Are you kidding me? Cell mutation? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.