Sengo Muramasa 2

Hades had a severe look on his face as he held the blade of Muramasa. He knew the extent of his physical strength, yet he felt like holding this blade was equivalent to the average coach potato trying to deadlift 40 kg. 

The scarlet eyes of Muramasa gleamed as he pulled his sword back, but he was dismayed to find that it did not budge. Hades' grip was like a vice, not willing to budge an inch. 

"Interesting." Muramasa commented as he did something nobody expected... he let go of the blade. 

It wasn't just that losing his weapon would lower his lethality, but it was practically a universal law that swordsmen like him hated nothing more than to lose their sword, regarding that as a dishonorable thing or something, right? 

Since when did they voluntarily let go?