[Explosive Advantage] Engaging in a Mental Battle with the Strongest Evil Spirit Since Birth, I Exceeded the Measurable Magic Limit – The Humble Conquest of the Cursed Child - Chapter 7

Kai’s mother had successfully conceived her second child.

However—

The mother of a vessel child conceiving again was completely unprecedented.

After all, the mother of a vessel was supposed to die the moment she gave birth.

Fortunately, when she conceived her second child, she did not develop a “Spirit Mark”—

A Spirit Mark was a unique symbol that appeared on the mother’s abdomen when the child she carried was destined to be a vessel.

The Exorcist Clans had long relied on the Summoning Ritual of Malevolent Spirits to contain disasters.

And as a result, vessel children were occasionally born into these exorcist lineages.

If a woman developed the Spirit Mark, it meant there was no escaping her fate—she would inevitably give birth to a vessel.

A Mother’s Health Decline

Though unrelated to the Spirit Mark, Kai’s mother’s health had deteriorated significantly after becoming pregnant.

As a result, she was now hospitalized for bed rest.

A Rare Visitor

Meanwhile, something unusual was happening in Kai’s life—

A visitor had arrived at their home.

The purpose?

A health check-up for Kai.

Normally, children had to visit a community center for their routine check-ups.

But due to Kai’s special circumstances, the doctor came to him instead.

“A-Ah… um… Lord Kai… May I proceed with the check-up?”

“Ah, yes.”

“T-Thank you very much… Pardon my intrusion.”

The doctor, clearly nervous, hesitantly placed a stethoscope on Kai’s chest.

For some reason, despite Kai being only four years old, the doctor treated him with extreme deference.

After completing the standard examinations, everything appeared normal.

Then—

“Lastly, we’ll conduct the Magic Power Measurement.”

(“…Magic Power Measurement?”)

A Conversation with Douma

【Brat… For someone with a freakishly mature soul, you sure know nothing about this world.】

(“…My bad.”)

【Listen, measuring a child’s magic power at this age is something that hasn’t changed since my time.】

(“Huh…? But I thought kids couldn’t even use magic until later? I remember watching a video where a four-year-old prodigy was considered a big deal for just being able to use magic at all. Doesn’t that mean it’s too early to measure?”)

【Idiot. Being able to use magic and the size of one’s magic reservoir are two entirely different things.】

(“Oh…?”)

【Haven’t you ever heard the phrase ‘The soul of a three-year-old lasts a hundred years’?】

(“…I have, actually.”)

【Then use your damn brain!】

(“…My bad again.”)

【Simply put, the capacity of one’s magic reservoir is largely determined by the time they turn three.】

Kai’s Realization

(…Wait… WHAT!?)

(That means my magic capacity has already been decided!?)

(Dammit! If I had known, I would’ve trained properly! I wasted such a crucial time period dealing with Douma’s possession attempts! It’s over… I’m screwed…)

While Kai was mentally spiraling, the doctor placed a small glass of water in front of him.

“Alright, please use this.”

(…Oh, I know this! I’ve seen this in manga before. I just need to infuse my magic into this, right?)

Kai reached out, cupping the glass in his hands—

And then—

Silence.

“Kai, what are you doing?”

His father asked.

“Huh…?”

“You’re supposed to drink it.”

(…Oh.)

Kai obediently drank the water.

Post-Test Realization

【Brat, what’s with that disappointed look?】

(“…I mean, this was just a urine test…”)

【Hah…】

(“Magic Power Measurement through urine testing…? Come on, there’s gotta be cooler methods than this.”)

While Kai sulked, the doctor silently placed a few drops of his urine onto a test reagent.

The liquid remained completely clear.

The Doctor’s Shock

“T-This is…!?”

Kai’s father turned to the doctor.

“Doctor… what does this mean?”

“…Lord Shirakami, as you likely know, if a child has any magic power, the reagent will change color. The colors indicate the amount of magic in ascending order—purple, blue, light blue, green, yellow, orange, and red.”

“I see.”

“However… red is considered a one-in-ten-million rarity—it’s essentially unheard of…”

=================================

Magic Power Measurement Levels & Probabilities

Red – Level 7 (Approx. 0.00001%)
Orange – Level 6 (Approx. 0.001%)
Yellow – Level 5 (Approx. 0.1%)
Green – Level 4 (Approx. 2%)
Light Blue – Level 3 (Approx. 10%)
Blue – Level 2 (Approx. 30%)
Purple – Level 1 (Approx. 40%)
Other (Minimal or No Magic) – (Approx. 10%)

=================================

However—

Kai’s test reagent remained completely clear.

“So… that means…”

“Kai’s result is… Unmeasurable.”

In other words, it was a polite way of saying his magic power was nearly nonexistent.

A Silent Shock

After the health check-up concluded, the doctor left.

Kai’s father stood frozen at the front door, watching him go.

(…Did this hit Dad harder than I thought?)

(Well, to be fair… I’m pretty shocked too.)

Kai had been labeled “Unmeasurable” on his magic power test.

His father trembled.

“…A-Are you okay, Dad…?”

“…………This is unthinkable.”

His father clutched his head, clearly troubled.

(Wow… is he really that disappointed…?)

Kai felt terrible.

But then—

“No… but placing too much expectation on a child is… No, but the probability is higher than even that… If I dismiss the possibility entirely, wouldn’t that mean I’m limiting my own child’s potential…?”

His father muttered to himself, deep in thought.

【Hoh… Seems like the brat’s father isn’t completely blind, after all.】

Even Douma chimed in.

(“Huh? What do you mean…?”)

Then—

With newfound resolve, his father turned to Kai and asked:

“Kai… do you want to become an exorcist?”

“…Huh?”