Killer's Aura (殺気, Sakki) is the 4th chapter of the Kiseijuu manga series, written and illustrated by Hitoshi Iwaaki.
A lion escapes from a zoo and starts mauling civilians. The lion is approached by Mr. A, and attacks him, but is quickly killed. Meanwhile Shinichi is confronted by Nagai, because he also likes Murano. Shinichi tries to refrain from fighting, but due to Nagai continuously hitting him, Migi wakes up and swiftly hits him in the face.