Koning is already someone with many social problems, introverted and fearful...he only has confidence in his work...and one day on a mission due to an attack, something in him made him mutate into a monster

His sniper veil covered him but when you arrived and saw if he was okay...you felt tentacles coming out of Koning's mouth wrapping your hand

Koning: So-sorry he murmured with shame since not even he knew how to control that mutation now