Reincarnation as Lower Rank Five in Demon Slayer

"What is it, Master?" Little Black stopped digging and asked Li Lei.

Looking at the fist-sized, dirt-covered little black creature, Li Lei looked up at the moon and sighed deeply.

"Sigh! Why is this black bear I caught so strange? It used to behave like a dog, now it's like a rat. Who knows what it will behave like in the future?"

Xiao Hei (*?▽?*): "Me—?"

"Xiao Hei, don't speak, let me finish." Li Lei turned to look at Xiao Hei and interrupted him.

"Little Black! As a bear, can't you act like one? Other bears are either majestic and imposing or adorably clumsy!"

"If you can't do these things, then as a beast, you should at least act like one!"

Li Lei looked at Xiao Hei and continued speaking.

"But Master, you can't eat these things!"

Little Black blinked its big eyes and looked at Li Lei.

Faced with Xiao Hei's answer, Li Lei was speechless. He thought to himself, shocked:

"Goodness! (“▔□▔) Thinking about food at a time like this! Looks like Little Black will really only be a mascot for transportation from now on!"

"Master, am I wrong?" Xiao Hei looked up and asked, seeing Li Lei suddenly stop moving.

"Ah—? Yes, yes, Xiao Hei is right!" Li Lei said perfunctorily to Xiao Hei, not wanting to delve any further into the topic.

"Really?" A glint of wisdom flashed in Xiao Hei's eyes.

"Hmm—!" Li Lei nodded as seriously as possible.

"Wow! Little Black seems to have gotten smarter. Next time I meet Little Black, I'll definitely let it see how smart it has become."

Xiao Hei muttered to himself.

Looking at Xiao Hei, who was so confident in its intelligence, Li Lei could already imagine the scene of its reunion with Xiao Wu. Xiao Hei would definitely be completely fooled by Xiao Wu.

"Little Black, come here quickly, it's time to get down to business!" Li Lei called out, looking at Little Black who was still daydreaming.

"What important matter is it, Master?" Little Black hopped and skipped to Li Lei's side with its feet together.

"Of course, we're upgrading Little Black!" Li Lei said with a smile, looking at Little Black at his feet.

"Upgrade? What do you mean?" Xiao Hei asked, puzzled.

"You'll find out soon enough!" Li Lei said, not bothering to explain further to the puzzled Xiao Hei.

Li Lei squatted down, extended his right hand holding the parasitic flesh ball, and offered it to Xiao Hei.

"Little Black, see the red fleshy ball in my palm? Eat it and you'll level up!"

Seeing Li Lei's "kind smile," Xiao Hei sensed something was wrong and asked cautiously:

"Master! Can I not eat it?!"

"What do you say?"

"I think it should be possible to..."

"Go!" Before Xiao Hei could finish speaking, Li Lei threw the parasitic flesh ball into Xiao Hei's mouth.

"Ah—! (=°Д°=)?" Xiao Hei was startled by Li Lei's sudden attack!

"Little Black! Look how fast this upgrade process is, it only takes a moment." Li Lei said to Little Black with a smile.

The little black robot raised its head like a machine and looked at Li Lei. But it quickly came to its senses and began to examine its body rapidly.

"My stomach is fine! My hands are fine! My feet are fine! My body is fine! And finally, my brain is fine too."

"Hey—! Everything's alright! That's great!"

While Xiao Hei was happy that he was alright, little did he know that the parasitic flesh ball had already fused with the parasitic flesh inside his body and was about to advance towards his brain.

"Master, this meatball you used for upgrading doesn't affect me at all!" Little Black said happily.

When Xiao Hei asked him, Li Lei smiled and replied:

"Little Black! This fleshy ball won't have any real impact on you; it's just an extra layer of insurance."

As Li Lei spoke, the new type of parasitic flesh, formed by the fusion of the parasitic fleshball and parasitic blood and flesh, had already reached Xiao Hei's cerebral cortex.

The new parasitic flesh and blood that arrived in Xiao Hei's brain began to change, transforming into a thought filter composed of this new type of parasitic flesh and blood.

This mental filter can filter out Kuro's important secrets about himself, preventing Muzan Kibutsuji from reading important information about himself from Kuro's brain.

For example, the Parasitic Blood Demon Art. Xiao Hei knows that Li Lei possesses this Blood Demon Art. However, Muzan Kibutsuji cannot extract any information about this Blood Demon Art from Xiao Hei's brain, not even its name.

"Finally, that's all. Now I'll be much safer in the Ghost faction," Li Lei thought to himself.

Meanwhile, Xiao Hei, whose thoughts had already been filtered by Li Lei, started digging a hole in the ground again.

Li Lei ignored Xiao Hei, who had started digging in the soil again.

Li Lei opened the entrance to his alternate dimension, and a red spatial vortex with a diameter of 50 centimeters appeared in the air in front of him.

Suddenly, a red tentacle, wrapped around Nakime's eyeball clone, emerged from the vortex and was presented to Li Lei.

The eyeball clones of Nakime were inserted some time ago.

"Bang bang! Is Nakime there?" Li Lei tapped the Nakime's eyeball clone in front of him and asked.

As soon as Li Lei finished tapping, the eyeball clone in front of him moved. Soon, its pupils focused and looked at Li Lei.

"Lower Moon One! What do you want?" Nakime's eyeball clone spoke in a lukewarm voice.

"Hey! Nakime, you're here! How have you been lately? I've missed you so much!"

Li Lei teased Nakime about her eyes.

"Lower Moon One (1) Lei! What's the matter? Speak quickly, don't waste time here." Nakime said indifferently to Li Lei's teasing.

"Sigh—! It's only been a few days, and Nakime, you've already become so cold towards me!"

Meanwhile, in the infinite city of another dimension, Nakime sat with her back against a wooden wall, tightly gripping the biwa in her arms.

Nakime didn't want to accept the message about Li Lei sent by her eyeball clone.

However, if you don't accept, you might be punished by Muzan.

"Sigh—! What a terrible day!" Nakime sighed.