First, in civilizations above level four, there are very few cultivators who draw energy by plundering the star core, compared to the cosmic crystal of the free energy body, if you want to absorb the energy in the star core, you must break its fixed energy combination, and it is inevitable that a large amount of impurities will be inhaled in the cultivation process, which is extremely unfavorable for the breakthrough in the future.

"No wonder I always have a feeling of unsmoothness when I break through the seventh order, it turns out that my body still contains a lot of impurities!", Li Yu suddenly realized, but in this remote corner of the universe, they don't have any cosmic crystals, and they can only quickly evolve by hunting the star core of the Starry Sky Zerg.

"Let's talk about the impurities later", he sighed, these impurities were mixed into the recombined spatial power, and with his current strength, he couldn't detect it at all.

"The energy accumulated by that yellow-tier spaceship should be able to fly to the Yanhuang base", he kept teleporting and came to the base in the Americas again.

The spaceship rested quietly on the ground, and from time to time there were curious glances from past umbrella members, and several diamond-level members guarded here, and the meager cosmic energy in the air was constantly absorbed by the spacecraft, forming a faint energy halo.

"It seems that the alien brain is at least the energy crystallization of a civilization above level 6!"

Li Yu once compared this yellow-level spaceship with the spaceship model in primary aerospace technology, and found that there was a striking similarity between the two, and in aerospace technology, there were more powerful Xuan-level spaceship designs.

Only the sixth-level and above-level civilizations of the Xuan-level spaceship will have mature production technology, although the current earth technology is not as good as the fourth-level civilization where Beilugar is located in many aspects, but in the spaceship, the manufacturing technology of the Xuan-level spaceship alone can buy the entire gamma system.

"Alas, it's a pity that there are some materials that the earth can't get at all."

After unlocking the primary space technology and primary aerospace technology, the manufacture of the Yellow Rank spaceship is no longer a difficult task for the earth, but the easiest material problem for other civilizations above the third level has deeply troubled the earthlings, and they have just landed on the moon and have never heard of some of the rare materials and metals in them.

"Let's see what's inside, right?".

The spaceship became ownerless after Beilugar's death, and even the ship's intelligent program in it stopped running, and when it was activated in a special way, the entire spaceship instantly lit up.

"Drop, space jump energy is insufficient, start flight mode, please select the correct coordinate point on the planet model".

After Li Yu clicked on the coordinates of Yanhuang Southwest with his finger according to the prompt, the entire spacecraft quickly rose into the air without making a sound, and in less than a few minutes, it had already arrived above the Yanhuang Southwest Castle.

"Master, master, it's going to rain~", the maid who was playing outside hurriedly ran to Jiang Yuyao, pointing to the huge shadow caused by the spaceship and shouted milkily.

"What is this?".

The castle owner looked up, looked at the disc-like flying object, and sounded the air alarm.

"It's me!", a majestic voice resounded through the castle, and the air alarm was turned off by Skynet.

"It's Boss-sama!".

After landing on an open field, Li Yu opened the hatch and walked out, Jiang Yuyao walked over curiously with Yaya in her arms, and touched the spaceship.

"Is this a flying saucer?", the two of them asked as they walked into the spaceship, pointing to strange places as if they were visiting a tourist attraction.

"This is the Yellow Rank spaceship, in fact, we have had design drawings on Skynet for a long time, but we can't design it", he briefly said about Beilugal.

"The alien who was carried to the lab?".

Jiang Yuyao looked at the faintly fluorescent spaceship and imagined the scene of a green-skinned two-headed alien piloting the spaceship in space.

"What about rhyme?".

Li Yu walked around the castle and didn't see Chu Hanyun, thinking of his wife who had just become pregnant, he couldn't help but show a little worry.

"The disciples are gone."

Jiang Yuyao said with a smile, seeing Li Yu's anxious appearance, she couldn't help but feel a little surprised, and said that she was pregnant for ten months, and this was just the beginning, Chu Hanyun's status in her husband's heart was different, and it seemed that she had to work hard.

In between the two of them talking, Yaya was tossing hard in the storage room, all of which were miscellaneous items that Belugar did not use, and they were full of various cosmic lingua franca, which seemed to the earthlings like ghost drawings.

"Ah, what an ugly puppet!", Yaya angrily threw a double-headed green-skinned puppet out, seeing Li Yu and Jiang Yuyao speechless for a while, can you expect the aesthetics of aliens to be the same as humans?

"Master, master, what is this?".

The mischievous girl pulled out a transparent jar filled with strange seeds and a manual written in cosmological language.

"Yellow-tier creature armor?".

Li Yu looked at the text above and read that this is a kind of biological battle armor that can weaken ten percent of the attacks received, and it needs to be warmed with a star core in peacetime, and there are higher-level biological battle armors on it, and Belugal treasures a Xuan-level battle armor, which can weaken the attacks received by fifty percent.

"Shall I try?".

The purple starlight emanated from Jiang Yuyao's body, and the race in her hands grew branches under the nourishment of the starlight, quickly covering her, and what was even more amazing was that she felt that she could change the appearance of the biological battle armor with a movement of her mind.

Fantasizing about his favorite lotus dress, under the impetus of the purple starlight, the form of the creature's armor changed.

"Wow, master, I want it too?".

Yaya's eyes widened, and Li Yu was also very amazed by this, with the biological mecha, there is no need to worry about destroying the clothes in every battle, because as long as there is the nourishment of star power, the damaged biological armor can be restored quickly.

Putting a seed in the palm of her hand, Yaya began to urge the colorful abilities in her body, but she waited for a long time, and the expected biological armor still did not appear, she lowered her head in annoyance, and really didn't understand why this happened.

"Let you obediently condense the star core, hum!", Jiang Yuyao put on the posture of a master, and every time he taught the Condensing Star Technique, this little apprentice would be half-hearted.

"Master, Yaya is wrong."

Holding a fist-sized seed, she pulled Jiang Yuyao towards the cultivation room, expecting to be able to condense the star core as soon as possible.

"Destiny Core!".

Li Yu looked at the figure of one big and one small far away, but he really wanted to see another peerless genius appear on the earth, he came to the secret room of the spaceship through the command, looked at the strange ability weapons inside, and only felt that a piece of alpaca flew in front of him.

A meteor hammer tied to a long stick? A hammer like a garbage can?

Well, he really can't understand the gamma-savagens' weapon design preferences!