The Demons' Trump Card...

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If it wasn't because her mother arrived in the last moment, Elena would have accidentally destroyed the soul of Arthur attached to Buer, killing an innocent person that was only being manipulate. Well, not so innocent, he did a lot of deplorable things, but all within the thought of everything being a video game, he simply had no idea that what he was doing had real weight.

Thankfully, Planta roughly took away his soul and healed it, letting it go afterwards. Arthur's avatar had been completely pulverized, but at the very least his real-life self would be fine, perhaps with some constipation and headache though.

"Hahhh… I-It's over," sighed Elena, suddenly noticing a notification in front of her. "Huh?"

[You have run out of Internal Sword Ki Essence. You can no longer use {Specialization: Master of the Empty Blade} until it is further restored.]

[You can restore Internal Sword Ki Essence by defeating foes using swordsmanship techniques.]