I stared at the book on my desk again.
　That red book was a grimoire, according to Lucille.

　Great magic born from Lucy's research.
　It is hidden in this grimoire.

　Lucille is both Lucy's disciple and niece, so she probably isn't saying anything wrong.

　However, Lucille also said that this is something we need for us.
　I don't know why.

''If it's a great magic produced by a genius like Lucy-sensei, I don't think I'm going to be able to handle it.

Yeah. I'm sure it wouldn't work on Solon.

　Easily, Lucille nodded.
　There's a difference in rank between me, who's only slightly above average as a sorcerer, and Lucy, who's even called a genius once in a hundred years.
　So it's no wonder that she can't use this grimoire on me.

''Then why is this something we need for us?''

Don't you get it?

　Lucille stared at me.
　Her red eyes shot through me like she was testing me.

　Thinking about it, I came up with one possibility.

''Could it be that Filia-sama can master this grimoire?

　Lucille nodded silently.
　Me and Filia looked at each other.

　Filia nodded her head.

'What do you mean it can be used on me, but not on Solon?　I know only a little bit of magic compared to Solon, you know?

'It's not the magic technique that's the problem, it's the amount of magic. That's why an ordinary sorcerer can't handle this magic.

　Lucille then grabbed the red cover of the grimoire and opened the contents.
　There were still mysterious, undulating letters written on it.

　Each letter was indistinct, and each letter was made up of fairly fine lines intersecting each other.

'These letters are....'

Ancient Western script. Ancient Western script, used in Alemanian Farren 2,000 years ago.

Huh....

　The Republic of Alemania Farren is a nation to the west of the Empire.
　It also fought fiercely against our Empire in the Great Republic War.

　This grimoire may have been written in Alemania Farren's ancient magic or something.
　I thought about why Lucy was familiar with the enemy country's ancient magic.

　At that moment, Filia's voice broke out in a joyful tone.

'This has some amazing magic written in it!

It's the Great Magic of Professor Lucy.

　Lucille replies in confusion.

''And that magic can only be used on me, right?

Yes.....

　Filia's eyes sparkled.

'I want to use it!'

　Filia is curious, and when she hears that there is a powerful magic that only she can use, it's natural for her to jump at it.
　Filia reaches for the grimoire in Lucille's hand.
　But Lucille quickly dodged away.

''........I can't leave it in your highness' hands.

Uh, why?

"His Highness is not yet a magician.

　When told that she was immature, Filia was at a loss for words and looked a little depressed.
　I patted Filia's dejected shoulder with a pat on the shoulder.

　Just like Lucille said, Filia is still a beginner in magic.
　So even though Filia has a huge amount of magical power, I'm not sure I'd be able to teach her the great magic described in the grimoire.
　Lucille says.

''So I want Solon to help His Highness Filia to use this magic.

I see.

　Just what exactly is the content of this magic?

　Could it be an oversized fire magic like the one Lucy was dealing with, or could it be a healing magic that was immensely resilient?

　But according to Lucille, it was neither of those.

''I've heard it's support magic,''

Supportive magic?

Yes. Supportive magic to enhance someone else's powers.

How does it work?

I don't know. I haven't heard that much either. But Dr. Lucy said you two needed it.

What we both need...

　Filia repeated Lucille's words.
　Indeed, Lucy's phrasing of the message was probably intentional.

　Since it is Filia who can use magic, it should be safe to say that it is necessary for Filia.
　However, I understood why Lucy didn't say so.

　Eventually Filia also popped a hand.

I'm sure you'll be able to find it. I'm sure that if I use this grimoire, I can help Solon!

That's what I mean.

　For the first time, Lucille showed a faint smile.
　With the support of Filia's supportive magic, I will fight as the vanguard.

　It's a balanced way to fight.
　However, I'm not Filia's adventuring partner, I'm her master.

　It feels a bit odd to have my apprentice cast support magic on me.
　I'm sure you'll be able to find a way to make it work.

　I stepped back with a thud, and Filia stepped forward and approached me as well.

I'd be happy to help Solon and fight with him. 'Not Solon?'

Uh, I won't say I'm not happy, but...

Then why not?

But it might put Lady Filia in danger.

You'll be fine. Solon will take care of you.

　Saying that, Filia smiled a beautiful smile that was like a flower blooming.
　I've already borrowed Filia's help during the Necropolis attack battle as well.

　Then there might not be any reason to hesitate.

　Lucille looked at us like that with a complicated expression.
　But eventually, Lucille opened her mouth again and said quietly.

'I still have a message for you, Lucy-sensei.