“How do you mix up blood and cherry soda? Heat-of-the-moment thing?”

↓ Transcript
Panel 01: (The Crimson Fly dodges Jim's knife as Joy tries to warn them about it)
Joy: Watch out! He's got a knife!

Panel 02: (The Fly jumps over Jim to dodge the knife)
The Crimson Fly: Yeah, thanks, Lady!

Panel 03: (Jim stabs the Fly)

Panel 04: (Jim's eyes widen in horror)

Panel 05: (The Fly's eyes widen in horror)

Panel 06: (The Fly withdraws their hand from their abdomen, revealing what looks to be blood)

Panel 07: (Panicking, Jim runs away in fear and shame)
Jim: Oh, God, I killed a kid!

Panel 08: (The Crimson Fly withdraws a soda can from their pocket, revealing the liquid to be soda)
The Crimson Fly: So glad I bought that juice! Woof! So close!