It wasn't necessary, but after luring one Kraken, Leon helped his zombie Kraken to speed up the end of the battle. Darya didn't have any magic items; in fact, she was stronger than Leon without any magic items, and while her skills were still at a low-level... Still, Leon decided to create some magic items to keep her safe in case something happens. However... the moment Leon tried to seal the spirit of a Kraken on a steel ring, the ring started to burn and then exploded.
"What the heck..." Leon frowned.
Leon suffered no damage since his Mana Armor was always active, but he lost a lot of mana, and that scared the crap out of him. When the ring exploded, the mana within the Kraken spirit also dispersed. So, he had to find another one. However, when he tried to create a magic staff with the soul of another monster... it exploded again.
"I guess I finally reached the limit of magic items I can create using steel weapons."
Leon didn't give up, he tried to create magic items by combining several types of metal with the spirits of Krakens and ancient whales, but he failed every time. Not only that, but he also spent one week trying.
"I guess it is impossible to seal their spirits in common metal," Darya said. "We have no choice but to keep using magic items from weaker monsters, or... we will have to learn how to create that metal or find in other worlds."
"So, it can really be found in other worlds." Leon rubbed his chin. "The people of my planet didn't try to explore other worlds all that much. Did the people here try that?"
"Yes... but we stopped when the harvesters appeared." Darya looked away. "In fact, I even saw one magic staff made of that kind of metal."
"Just one?" Leon frowned. "Is it that difficult to find? If that is the case, I thought this kind of item would be kept hidden in a very safe place, and it would go to the hands of a very capable soldier. I didn't think you have visited the frontlines."
"I didn't... that magic staff belongs to my grandfather." Darya let out a long sigh. "Only a few people know this, but by using that magic staff, he managed to stop a rampage harvester by himself."
"Are you for real?" Leon said, his eyes wide open. "How exactly he did that? If I manage to learn what kind of spells he used... perhaps I could try to replicate it and then obtain the power to make a harvester tell what I want."
"The details of the battle are classified," Darya said. "Although there are rumors like that, no one knows what kind of spells my grandfather can use."
"I see... but to think a man who has been using mana only for seventy years being able to defeat creatures like that..." Leon rubbed his chin. "Now, I understand why he is the most influential person in this world."
"Well, just don't think of asking him anything, okay?" Darya said. "He wouldn't do it himself, but he will give the order to execute if someone caught me. As for you... he will definitely kill you since you invaded the research center and created a hole in the city... Well, the hole had probably been repaired a long time ago. But still..."
"I got it," Leon said. "I have no intention of involving myself with someone who uses his relatives like tools and slaves."
That being said, Leon was quite curious of Darya's grandfather skills and weapons. Anyway, after giving Darya some rings that would increase her health, endurance, and mentality, they decided to look for underwater dungeons. She was short and frail, so she couldn't use shields, armor, or anything to have... those were the only things Darya could use.
Regardless, even though Leon could defeat Kraken and ancient whales, he had no intention of entering their dungeon or checking their worlds. It was because he couldn't use his crazy method of restoring mana. Although Leon and Darya could eat blue angel leaves, they couldn't stay underwater for long periods of time. Besides, Leon just wanted to fight with no more than ten of those colossal monsters every day. His skills were leveling up like crazy, but that wasn't good for the heart. And there was always the chance that they could find a harvester while they were at it.
The zombie Kraken was so convenient that Leon almost forgot to ask if there were grim reapers in that world. He would need them to obtain the skill Zen, so he asked at the end of the day where they found a dungeon where the Krakens were spawning. Fortunately, it looked like only one appeared per hour. It looked like the second stage of assimilation changed the rules knew discovered after leaving the island. It was a pain, but in that situation, that was favorable to them.
"Grim reapers? I read in a book that they existed..." Darya said.
"Before the harvesters appeared," Leon added.
"Yes... If I remember correctly, the dungeon spawned skeletons, and that was the boss." Darya said. "But the dungeon became inactive twenty years ago."
Leon let out a long sigh. He was already used to facing problems like that, so even though it was annoying, it wasn't the end of the world. He could always find other monsters that have similar skills and create an item that has that kind of passive skill. In fact, since he was in a world that had stronger monsters than on Earth, he would probably find a much better version of it. He just has to have a little bit of patience.