Supreme Couple In Apocalypse: Undead King & Demonic Queen

The reward that Rin and Erix got after clearing level 7 cave's single Howling Tomb was simple yet impactful.

A scroll of Insight. One could get an insight into anything with this scroll. If one wanted insight into Wind Element, that person could just write [Insight into Wind element] on the scroll and activate it.

Write it down, and you could get an insight into that one particular thing.

It was a one-time-use item, so Rin and Erix decided to use it once they faced a solid wall during their Howling Tomb challenges.

…

After Erix and Lilith showed the real deal and whipped Maleina and Lynia to their places, Rin and Lily returned shortly.

The level 8 cave's howling tomb was yet again different than level 7. It didn't have one Howling Tomb, but five instead. However, the four out of five tombs were locked.

Rin didn't attempt to challenge the level 8 cave's 1st howling tomb, as there was much more to it than just a direct challenge.

She had to read a wall of text, and when she finished, Lily had just emerged from level 8 cave's 1st tomb, telling Rin everything about the challenge and explaining to her the difficulty.

To unlock 2nd tomb, one would need to use both wits and power to solve some mystery in the 1st tomb. The enemies were also multiplied, and not just one boss, as the level 8 howling tombs were rather adventurous.

After they returned, they spent the night in meditation rest to recover. Basically sleeping. But on the next level, to recover fast and fully, physically and spiritually.

The next day, Rin and Erix completed the 1st tomb challenge, but it took them three hours. A similar amount of time that Lily took.

Moreover, they exited injured again, indicating that the difficulty was no less despite it being 1st tomb of level 8. Of course, Rin and Erix also purposely became daredevils to improve faster at the cost of danger and injuries after they entered that demonic world and unveiled it.

Lily was at her own pace because she was stronger, and Rin and Erix after breaking through to Royal-order.

Afterward, everyone's daily routine once again began.

The rest of the day went to Serene Spot meditation to improve comprehension of their powers. Rin was focusing on improving her Wind mastery as she also wanted to make it reach 3rd realm.

Erix was focusing on making Death affinity reach 3rd realm due to his Death-heavy state.

When the girls recovered again, Erix would suck them again without wasting time.

The next day, Lynia and Maleina had a taste once, and they at least removed their masks during the activity as they moaned and screamed in euphoria despite their egos burning with hate.

….Their ego fell short against Erix's poundings and the crazy pleasure that it brought them.

But it was only because of Erix's efforts to suck them dry as fast as possible to save his time, which in turn was improving his techniques at crazy speed, hence making everyone dry faster at the increasing pleasure that would linger deep with them and take root.

Something that nobody had expected was soon going to happen with Erix due to his efforts in this carnal activity.

…

Just like that, a week passed by in the blink of an eye, making it their 22nd day since they arrived at the Fallen Land.

During the past week, they also hit the peak of Noble order in terms of stats, thanks to Lilith's mystic cooking with her Mystic Chef sub-class.

Erix's source balancing finally hit 20% progress, so after getting a few more percentages of progress, he and Rin could go on a hunt to reach level 200, which they decided they would do once they won the level 9 howling Tombs' challenge.

They also finished level 8 cave's five tombs and level 9 cave's three tombs during the week, leaving only the last two for the level 9 cave.

The level 8 cave's reward was another Scroll of Insight, but level 9's reward was going to be something called Scroll of Art.

It could create a Legendary Tier-5 item of their design and power. Of course, one could exaggerate, and the scroll would manifest a balanced item with its capabilities and parameters capped at being a Legendary Tier-5 item.

…

On the 23rd day, Erix and Rin completed the 4th tomb's challenge, unlocking the last one.

On the other hand, Lily had already finished all howling tombs, including the last level, and was focused on increasing her Mist mastery to reach the 5th realm after she used a Scroll of Insight to gain insights on the Mist element, an advanced element birthed from a precise combination of primary elements: Water + Wind.

…

Rin and Erix returned to the cavern after completing the 4th tomb.

"The last one is going to be the toughest nut to crake," Erix thoughtfully said. "Should we use a Scroll of Insight and see if we can make a burst progress in anything?"

"If we can get enlightenment after using it, then we can definitely burst progress," Rin nodded, her eyes indicating deep thinking, "But let's use it super carefully. I want to get insight into something impactful rather than just progressing in one of our affinities or concepts."

"Yeah, I was thinking the same," Erix nodded. "I want something to utilize the worth of this wonderful item fully. We can still gradually progress in our affinities without it, heh."

"What are you talking about?" Lilith asked as they saw the duo emerging from the portal while talking.

"We are thinking about using a Scroll of Insight, but don't want to just use it thoughtlessly," Rin replied.

Both of them arrived at the aesthetic wooden table and sat across Liith.

Lily was in deep meditation for five whole days without moving a muscle ever since she used the Scroll of Insight.

Klelia was also on a Serene Spot while Reinala, Lynia, and Maleina were working as maids as usual, mostly dressing and preparing ingredients.

Not just for cooking but also for Alchemy because Maleina was a rather high-level Alchemist, at level 4.

So Lilith was using her to make various potions and even experimenting to create new ones.

"If you want to use Scroll of Insight to its full potential, then I have a suggestion," Lilith said with a faint, mysterious smile. "But, there's a catch."

"Oh?" Rin and Erix raised their eyebrows.

"Hahaha, it's funny when you show a simultaneous reaction," Lilith burst out laughing.

Rin and Erix wryly smiled.

"So, what's the suggestion with a catch? You left us hanging."

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