After leaving Mrs. Ellie's room, Martin went straight to the guard's residence.

He already had a plan in mind. He planned to promote Betan to the Black Iron Knight first, and then gradually upgrade the other guards one by one. The whole process must be cautious and must not be too ostentatious to attract attention.

After all, if others knew that Martin possessed such a magical ability to help people get promoted quickly, even if he was the earl's son, the earl would probably find it difficult to protect him.

After arriving at the guard's residence, Martin summoned Betan. Although Betan's loyalty was already over seventy, Martin, out of caution, did not mention the system.

Even if Betan joins the Oath Guard in the future, Martin is determined to keep the secret of the system deep in his heart.

The two men arrived at a corner of the training ground. Martin, with a solemn expression, looked at Betan with great seriousness and asked, "Since you are already serving under me, I will naturally not give you any concerns. Are you willing to swear allegiance to me until death?"

Without hesitation, Betan responded loudly, "Sir, I do!" At this moment, a system prompt sounded in his mind: "Ding, the system has detected a person who meets the membership requirements. Do you want to allow them to join?"

Martin silently said in his heart, "Granted." Then, Martin said to Betan, "Next, I will help you advance to a knight. You must feel this powerful force."

After that, he ordered in his mind: "System, upgrade Betan, deduct 100 gold coins."

"Ding, host: Martin White, level 0, sworn guard: 1 person." In an instant, under Betan's incredulous gaze, his body emanated a soft light from the inside out.

As the light gradually dissipated, a powerful aura gushed out from Betan's body. Martin, who was standing in front of him, could truly feel the pressure coming towards him.

After a while, Betan gradually became familiar with his new physical strength and steadily retracted the outward aura into his body.

Beitan was extremely excited. He knelt on one knee and said sincerely: "Thank you for your kindness, young master. From now on, if anyone wants to hinder you, I will do my best to remove all obstacles for you!"

After becoming Martin's sworn guard, Betan's loyalty instantly soared to 100%, which means that no matter what difficulties and obstacles he encounters, he will not hesitate to dedicate everything to Martin.

At this moment, the most urgent thing for Betan is to get familiar with this new and powerful force.

So, Martin decided to let Betan stay in the training ground to continue honing his skills, while he turned and walked towards the room.

Along the way, Martin's thoughts were churning, and he kept thinking about how to cleverly control and use the magical power given by the system.

As I stepped into the room, a breeze blew in from the window.

Martin gently closed the door, walked to the window, and looked at the pleasant scenery outside. The breeze brought a hint of coolness to his face, but his heart was burning with infinite longing for the future.

Martin began to plan carefully. At the moment, the most difficult problem was the lack of money.

It cost dozens of gold coins to capture the Shadow Wolf. The gold coins he got from his mother plus his own savings totaled only more than 800 gold coins, as well as some silver and copper coins.

If all this money were used to upgrade the knight, the costs required for subsequent potion training and armor maintenance would be unaffordable, let alone purchase and maintenance.

Although selling the Shadow Wolf was expected to bring in around 1,000 gold coins, after deducting the cost of purchasing 10 bottles of Knight Potions, there would only be more than 500 gold coins left, which was far from enough.

After repeated weighing and careful consideration, Martin finally made up his mind to let Betan and others start to form a mercenary group to earn some gold coins.

However, before that, there is an extremely critical task that needs to be completed - to upgrade their level.

After all, if the strength is not improved first, once the mercenary group is officially operated, it is very likely to suffer a crushing defeat or even be wiped out when facing all kinds of powerful enemies.

Therefore, improving the strength of team members is of utmost importance. Only with a strong enough force as a solid backing can this mercenary group stand firm when carrying out various tasks in the future.