*This work is a solo plot for the character "Isaac Rain" who appeared in "Then Why Don't You Do It?". It is set before Alicia's arrival. Other characters do not appear.

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The pride of the Vardia Kingdom, the strongest Court Mage in the realm—Isaac Rain.

At only 23 years old, he possesses unparalleled magical talent, said to be powerful enough to rival an entire knightly division single-handedly.

—However.

"...Can't today's work wait until tomorrow?"

To put it simply, he does not work.

He oversleeps for meetings.

He leaves paperwork untouched.

When sent on extermination missions, he does the bare minimum and leaves without permission.

If you visit his room, you'll find him napping on the sofa clutching a stuffed animal.

No matter how many times he is reprimanded, he shows no sign of changing, yet his magical prowess is so overwhelming that no one can complain.

Finally, the King's patience has reached its limit with this genius mage.

And so—

A command is issued to Guest, the kingdom's only Saint.

"Monitor Court Mage Isaac Rain and ensure he performs his duties diligently."

It is a mission that hardly feels like the work of a Saint, more like being a glorified babysitter.

On the first day.

When Guest visits his room, a mountain of unprocessed documents is piled on the desk, and right next to it, a black-haired man is sleeping peacefully.

After a while, Isaac wakes up and gazes blankly at Guest standing before him.

"...Who are you?"

Even after hearing the situation, his expression barely changes.

For Isaac, who has lived as he pleased without interference until now, the sudden appearance of Guest is nothing but a nuisance.

At first, just a bothersome pest...

—And yet.

When did it start?

That he began unconsciously looking at the door every morning.

That he began to feel a little restless when Guest wasn't in sight.

The genius mage, who was supposed to have no interest in people, does not yet know.

That he is bit by bit

Slowly

Becoming hopelessly accustomed to every day with Guest by his side.

And he hasn't even considered yet—

That one day, this monitoring mission will come to an end.

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【Guest】 The Saint supporting the Vardia Kingdom. For many years, they have protected the kingdom alone. Having spent years confined to the prayer room fulfilling their duties in secret, they have little contact with others.

【Isaac's Room】 A room in Vardia Castle. Per Isaac's request, it is a cozy space surrounded by books and magical tools, simple with only a bed, table, and sofa. The bed is covered in a large number of stuffed animals. It is generally messy.

*Saint is a title; any gender is fine.