"Is it 1 billion? It's not easy! It's finally almost full!"

After smashing an eighth-level tiger-shaped monster with one punch, Lin Yu listened to the sound coming from 9527 in his mind, an indescribable surprise flashed in Lin Yu's eyes.

"It's really not easy. I thought it would be easy to earn 100 billion energy value, but I didn't expect it to take more than a month to make it!"

In the past few dozen days, Lin Yu has been soaking in the secret realm day and night, and countless monsters were buried in his hands. It is no exaggeration to say that the monsters Lin Yu killed in the past few dozen days may not be as much as Lin Yu killed in his lifetime!

"It's enough to be a level eight monster!"

Lin Yu murmured unconsciously, then turned into a strong wind and rushed into the sky, then rushed into the air.

"roar!"

A roar sounded, and then an eighth-level aura appeared in Lin Yu's perception.

"Finally found it, the eighth-level intermediate level, you're lucky, just right!"

Lin Yu's eyes lit up and his body quickly flashed through the air!

"roar!"

Lin Yu, who was parked in the air, looked at the huge gorilla below that was pounding his chest crazy. A smile flashed across the corner of Lin Yu's mouth and stretched out his right hand!

"Eighty Divine Air Strike!"

Suddenly, countless huge transparent fist shadows poured down. The gorilla below seemed to feel a huge threat. It suddenly raised its huge head and looked at the countless fist shadows emitting a terrifying aura in the sky. The gorilla's eyes suddenly became dull, and then quickly turned to fear!

With a roar, the yellowish-yellow light cover immediately covered the huge body, but everything the gorilla did was destined to be futile. The fist shadow instantly blew the light cover and hit its body urgently.

The gorilla monster only made a shrill roar, and then there was no sound, leaving only countless roars.

"Congratulations to the host for killing the eighth-level intermediate monster and obtaining an energy value of 1 billion 20 million (there are higher-level bonuses, I'm afraid you will forget it!"

Lin Yu looked at the system news excitedly and couldn't wait to speak to 9527 in his mind, "9527, is it enough?"

"Hehe...Yes, Dad, the energy you have now is: 88.42 billion (11.6 billion has been spent!)"

Before Lin Yu was excited, a sound rang out in Lin Yu's mind again, but this time it was not the sound of 9527, but the mechanical prompt sound of the system.

"Congratulations to the host for obtaining a total energy value of more than 100 billion, triggering the system upgrade. Will it cost 50 billion energy value to upgrade?"

The air suddenly became quiet, Lin Yu's bright smile froze on his face, the corners of his mouth twitched slightly, and thunder rolled in his mind, and a thought was rising wildly!

"Damn it!! 9527 This little boy is targeting his own treasury!!"

After a while, Lin Yu calmed down, and then Lin Yu's gritting teeth sounded in his mind.

"9527, come on, tell me what's going on? Why does this thing cost energy to upgrade? Is it your kid cheating me!!"

"Uh! Dad, it's unfair! How could 9527 cheat my father? This system upgrade is equivalent to a significant enhancement based on the original functions, and it will also activate new functions. These require a lot of energy values. There is nothing to do with 9527, but Dad, I guarantee that this energy value is definitely worth the money!"

9527 A very aggrieved voice sounded in Lin Yu's mind. Finally, he promised Lin Yu with confidence!

"real?"

In fact, Lin Yu has no resistance to upgrading the system with flower energy value. The system itself is the foundation of his life. To put it bluntly, without the system, Lin Yu can have one ten thousandth of the current strength, which is why Lin Yu has good talent, not to mention that Lin Yu is now full of SS-level talents!

So Lin Yu is willing to make the system stronger, and Lin Yu is 100 willing. Besides, the system can be upgraded to serve Lin Yu better.

"It's more true than pearls! You'll know when the system is upgraded to the level! The energy value of this flower is definitely worth it or not!"

"Click it! Take it to upgrade quickly!"

Lin Yu glanced at the energy value that was about to be scraped away before he could warm up. A hint of heartache flashed in his eyes. He simply closed his eyes and felt unhappy. He waved his hand and asked 9527 to deduct it himself.

"Okay!"

"Didi... The energy value of 50 billion has been deducted. The system will be upgraded for the first time and the system will enter a dormant state. It is expected to take two days!! All functions of the system are temporarily closed during this period!"

"Didi..."

"Didi..."

The three consecutive system prompts made Lin Yu stunned the expression on his face. Then Lin Yu felt that something was missing in his mind, and his heart was a little empty. Lin Yu's eyes were one meter away, and then he tried to call him in his mind. However, Lin Yu shouted several times but received no response!

"This kid, I don't know how to vent my breath first, and he fell into a deep sleep in a quiet voice!"

Lin Yu shook his head, then threw this matter away, and began to look forward to the upgraded system in his mind!

"I hope that after this upgrade, the proportion of locking in the advanced world can be a little higher as 9527 said!, MMP, it is a bunch of broken worlds for 5 consecutive times, which makes me unable to consume it!"

Lin Yu thought of the low martial arts worlds locked by the system during the period of earning energy, Lin Yu couldn't help feeling speechless. At the same time, he also realized how lucky he was to lock the first world Naruto and the second world One Piece. If he randomly went to that messy world at the beginning, he didn't know how long it would take to get up!

"Forget it, go back and rest, wait until the system is upgraded. I haven't had a good rest after so long!"

Lin Yu whispered in a low voice, then flashed and disappeared from the spot. When he appeared again, Lin Yu had already returned to the exit of the secret realm through the Flying Thunder God!

Lin Yu looked back at the secret realm again, and then stepped into the vortex without looking back!

"Junior brother! How is it, how do you feel!"

As soon as Lin Yu appeared, Huangfu Long's voice came over!

"not bad!"

Lin Yu turned his head and looked at Huangfu Long with a smile on his face.

"Tsk tsk...I don't know what you guy thinks, he actually likes killing monsters so much!"

Huangfu Long shook his head, feeling speechless about his junior brother's special habits. Even if the monsters and humans are enemies, he has never seen anyone who slaughtered monsters in the secret realm all day long!

Previously, Lin Yu had been killing monsters in the secret realm. Huangfu Long couldn't help but worry and curiosity came in to find Lin Yu. However, after he saw Lin Yu blowing an eighth-level monster with one punch, Huangfu Long felt relieved instantly, and then he felt even more at ease with Lin Yu and let Lin Yu kill the monsters!

This junior brother of my own is a monster who will choose no matter what.
Chapter completed!