After Lucien reached Sword Master Realm by comprehending Grand Sword Dao, he mastered Hiten Mitsurugi-ryū, at least to initial mastery, but still, now, Hiten Mitsurugi-ryū showed really enormous attacking power and potential.
Lucien called out his Zanpakutō Akaitsuki, as the dual-sword style was best suited for the Hiten Mitsurugi-ryū. Only using pure abilities of his strong physique, gained by cultivating Sacred Body Refining System, he rushed at the Arachne Queen, that was tending her wounds, by consuming some kind of liquid.
Arachne Queen was caught by surprise, as Lucien was aiming at her legs. He wasn't aiming at already injured frozen legs, but rather at those healthy ones, as he wanted to lower her mobility even further. He was a designer and creator of the Mechanical Automaton of Arachne-Class so he had some basic understanding of there anatomy, and knew that their legs were extremely dangerous parts of her body, even more than hands.
"Splash." Blood spurted out in liters, as Lucien severed two of her legs, with precise slashed using Hiten Mitsurugi-ryū techniques. After severing two of her legs, Arachne Queen became even angrier and started slashing everywhere around with her remaining usable bladed legs, and also releasing very toxic poison. Sadly, for her, these attempts were absolutely futile, as Lucien already disappeared to the safe distance, as he waited for such retaliation.
"Cowardly human! Show yourself!" Screamed Arachne Queen in an absolute rage after she found out that Lucien was nowhere to find.
"Don't dare you to call me human, you trash!" Said the voice of silhouette that appeared behind her out of nowhere, and severed two of her hands, that were previously holding bladed weapons. Now she was completely defenseless and only two hands were remaining, that was used to conjure some kind of energy attacks.
"Aaaaahhhh!" Screamed she in enormous pain, as Lucien continued slashing at her with his Zanpakutō Akaitsuki, causing her many injuries, ending in completely severing all of her limbs, leaving there only decapitated pitiful creature.
"Truly pathetic... one would think that Type 10 Arachne Queen would be stronger." Muttered Lucien as he severed her head before she started screaming at him something.
"Hmm... I should search it here... it would be good to found her hatchery, where eggs are and destroy them throughout to prevent future problems. Also, maybe I can find some treasures." Said Lucien as he started searching for hatchery of the Arachne Queen.
It wasn't too hard to find it, and only after twenty minutes of searching, he found it. There were thousands of Arachne Eggs. Lucien directly used his destructive energy to disintegrate these disgusting things to the oblivion. Then he started to search for valuables and treasures.
One must know, Arachne Queen was Type 10 mutated beast, and even though Planet Ilter was just backward of the Aizhouma Universe in the God-Devil Plane, this Arachne Queen was probably older than entire civilizations of planet Ilter, so she must have some nice treasures.
"Oh! Void Stone... and several packs of them. They were very helpful in cultivation of Void Energy, maybe I could use a few of them, and leave rest for my Flerken to strengthen itself with them. They would be very nutritious food for it." Said Lucien as he stored several Void Stones to his Cross-Crest dimensional space. Right now, the entire space was empty, the only thing there was one Blood-Essence Sacred Refining Furnace, the corpse of Arachne Queen, and several tens of Blood-Essence Pills.
Then he found some weapons, armors, and some other equipment, most of them were of Mid to High-Quality of Mortal-Grade, so basically useless, only scraps of metal and god know what kind of materials. So Lucien left it here, so the Imperial Soldiers, would take it and bring it to smitheries for smelting. Maybe blacksmiths would find some usage for it.
"What the hell is this?" Asked Lucien as he looked at small shining orb on the ground.
"Sun Core Essence!" This little thing was extremely precious, as it was used by cultivators cultivating in Light Energy or those who were harvesting the power of suns, to improve their strength. Coincidentally, his mother was of the Light attribute, so this would be a perfect gift for her, so she could drastically improve her strength.
Afterward, he didn't find anything precious, only some books, data banks, or other mischievous things. Thought those data banks and books were pretty useful, as they were describing various power not only of the Aizhouma Universe but rather of the entire God-Devil Plane. So this would give them a better understanding of the entire God-Devil Plane and the place where they currently were.
"There is nothing of value to me here. I should return. Maybe I will try to hatch the Flerken Egg, with the help of Void Stones, the entire hatching process would go many times faster." Muttered Lucien as he thought about Flerken Egg that was resting in his chambers, as usual, it would take a long time before the Flerken Egg is hatched as they require an enormous amount of the Void Energy for the hatching process.
After he returned to surface, countless Imperial Soldiers with around fifty thousand Magitek Infantry Soldiers were rushing to the underground world, to clean it up. There were countless corpses that needed to be refined into Blood-Essence Pills before they rotten away, an entire underground world needed to be searched, kill every mutated beast that survived and picks everything that could have some value.
Now that all Type 10 mutated beasts were killed, Imperial Soldiers and Magitek Infantry Soldiers could do everything, and mining works could start.