Hershel looked at the punching bag and made a mental image of Luna. He smirked and played out a conversation in his mind. Hershel kicked at the sand-filled bag and remembered his first day, staring at Naieves' beautiful face.. He remembered her almost crying in fear because of Luna, he growled and started violently punching at the bag.
LEFT HOOK, RIGHT HOOK, UPPERCUT. 
He imagined Luna coughing up blood begging for mercy. Hershel smiled in delight.
CRESCENT KICK, DOUBLE UPPERCUT.
Hershel stopped and looked at the imaginary life-less body of Luna.
He sighed and he was let go of his frustrations. Hershel sat himself on the ground and noticed he was next to Kuro. "Well hello, Satan." he grinned wickedly.