The maid squad is too strong, what use is there for me, the Demon King?

Judging from Ed Brandt's words, it was fortunate that he wasn't told to immediately stop his "training" and come back right away; the training ended at the same time as Leah's graduation and return home.

That depends on Lia.

The basic curriculum at Astraea Magic Academy is a six-year program. Lia is currently in her second year. After completing the six years, she can choose to continue her studies, but Gray will probably only study for another year or two.

Even considering the worst-case scenario, if Gray doesn't resolve all of this within five years, he won't have much free time to deal with it afterward, unless he's determined to sever ties with the Brant family.

This is another problem. Gray intends to keep his identity as the Demon King a secret, and it's also difficult for him to sever ties with the Brant family, who have raised him.

Let's not think about these things for now, let's consider them again in almost five years.

Yes, running away is shameful, but it's useful.

When Liya heard that Grey would be there to assist her and that her father wasn't completely retired, she suddenly felt less pressured.

So, was Gray the only one who got hurt...?

—————————————————————

"Young master, Miss is looking for you."

It's the long-awaited maid, Katarina.

Gray nodded in agreement.

He then headed towards Lia's room.

At this time, Lia should be doing her homework in her room, right? Why would she call me over?

That's right, during college and long holidays, there's always homework!

It's just as inhumane as homework during winter and summer vacations.

Gray was glad he didn't have to go to college and go back to being a student who hated homework and exams.

Gray, with a hint of doubt, knocked on the door of Leah's room.

"Dong dong dong".

"O-nii-chan? (Brother?)" Lia's voice came from the room.

“It’s me,” Gray replied.

"Come in quickly, the door isn't locked." Leah's voice sounded a little urgent.

With permission, Gray pushed open the door and entered.

The walls of the boudoir were covered in soft cream-colored wallpaper, adorned with gold floral patterns, giving it an elegant and noble feel. A magnificent chandelier hung from the ceiling, its crystal pendants sparkling brilliantly in the sunlight.

In the center of the room stood a huge four-poster bed, its posts carved with exquisite roses. The bed canopy, made of silk, draped gently, forming a dreamlike screen. The bedding and pillows were filled with the finest down, soft and comfortable, and exuded a faint floral fragrance.

By the window was an exquisite writing desk, its surface smooth as a mirror, upon which rested a quill pen, an ink bottle, and a stack of fine stationery. A gilded mirror hung on the wall, reflecting the young woman's figure, next to a beautiful oil painting depicting a medieval castle scene.

In a corner of the boudoir, there was a special dressing area, with various exquisite cosmetics and jewelry boxes displayed on the dressing table, each piece shimmering in the light. A small round stool decorated with lace quietly awaited the young girl to sit down and comb her long hair.

The carpet is made of soft wool with an intricate and elegant pattern, making you feel as if you are walking on clouds. And the exquisite fireplace, even on a hot summer day, brings a touch of warmth.

As expected of a noblewoman's room, even for a fallen noblewoman, the room was still quite luxuriously furnished.

Gray rarely comes to Lia's room; after all, what older brother would go to his sister's room all the time?

However, Lia and Gray have a good relationship, so she won't be disliked.

Upon entering his sister's room, Gray didn't feel anything amiss.

Sure enough, it was the pink and white room in Capa that left a deep impression on him that night.

"Help me, help me! (Help me, Mr. Brandt (cross out) brother!)"

Before Grey could ask Lydia why she wanted to see him, the girl's sweet voice rang out.

Gray looked at Leah with a puzzled expression and asked, "Um... what's wrong? You can't expect me to do your homework for you, can you?"

"Brother is so smart!" Lydia's frantic nods left Grey speechless.

Gray said, "I'll help you with your homework, really? Or are you still half asleep?"

Lia's homework, assigned by the Astraea Magic Academy, was naturally related to magic.

Gray does know a little about magic, but not much, and his apparent magical talent cannot be described as world-class; he is simply completely ignorant of magic.

So, Liya asked him to help her with her homework?

That's a bit too absurd.

Grey couldn't help but wonder if Lydia had actually woken up.

You look quite energetic.

Lia seemed to see what Gray was thinking, and her face fell. "Brother! What's with that expression? Of course, I'm not asking about magic. How could I not know what you're capable of? It's math homework, you've studied arithmetic before, haven't you?"

"Oh." That's not surprising, but there's still a little something to it. Gray asked doubtfully, "Your academy teaches math? It's supposed to be a magic academy?"

Liya chuckled: "I knew you'd ask that, brother!"

Math is taught, but it's not a core subject. Ms. Erika says that learning math can train thinking skills, increase mental strength, and greatly benefit the study of magic.

Gray only then learned that there was such a saying.

Is it really true that if you master math, physics, and chemistry, you can go anywhere in the world without fear?

It'll still be useful even in another world...

The case was suddenly solved. Gray's mental strength was stronger than that of previous Demon Lords because he had studied mathematics and physics in his previous life, which honed his thinking and gave him a certain foundation in mental strength.

Gray didn't know how advanced mathematics was in this world, but with magic suppressing it, it probably wasn't very advanced. Gray should be able to teach Leah all the math problems she needed.

"Hey bro, wanna take a look at the questions?" Lia said in a provocative manner.

"Can't even do math problems, buddy?"

That's kind of interesting.

Gray raised an eyebrow.

The mathematics he learned from the Brant family education was at best arithmetic, and his understanding was nowhere near as profound as Leah's.

Of course, this is without considering past life experiences; Gray is not a loser.

On the surface, Gray's math skills are inferior to Leah's, but Leah still asks Gray to help her with her math homework.

Interesting. What's this girl up to?

Since that's the case, Gray stepped forward, ready to counter whatever move she made and show Leah a little bit of his elder brother's authority.

In reality, Gray was overthinking it. Leah's request for help wasn't about causing any trouble; she was simply disgusted by the math problems and wanted someone to share the disgust... no, she wanted someone to join her in criticizing this inhuman math teacher who set those problems.

"Brother, over here."

Lia moved closer to Grey without making a sound, almost pressing her body against him, and pointed to a spot in the book.

Gray is reading the question...

“1+2+3+……+98+99+100=？”