A silent, dark night.
That night was a fateful night for a certain boy.
All Servants had been summoned.
Lancer, who retreated due to Saber. After that, as if guided by fate, there was another encounter.
However, that was none of my business.
Saber and Archer meet, Archer is temporarily taken out by Saber's attack, and Tohsaka takes Emiya and Saber to the church...
"...."
I watched all of that from atop a city building.
Krkrkrkrk....!
"... You came? Cú Chulainn."
And, such me... is discovered by Cú Chulainn, who was scouting. Because I was deliberately scattering magical energy as if to invite him.
"The restrictions are now gone, so I was scouting the area... I never thought there would be such a meeting. Isn't that right?"
"Right? Isn't it amazing?"
"... Are you really my uncle?"
"What, can't you recognize me? Or have you become such a dog that even your intelligence has dropped, Cú Chulainn? Our dog who neglected his wife and ran around having affairs... Now your intelligence has decreased too."
"..... Not like an uncle. Or have I not known my uncle?"
Cú Chulainn looks at me with a frown.
Perhaps it's another being disguised as me... But, isn't your sense telling you? That it's really me...
"500 years. It's been over 500 years since I parted with you, Cú Chulainn. What you saw was merely my childhood self. Humans are bound to change. Some call it growth, some call it corruption. What do you think? Our nephew..."
"... The latter. What on earth happened?"
"You probably won't understand. What can you, who runs around having affairs and doesn't even know what true love is, understand? Cú Chulainn... It's truly a pitiful reality. Don't you think?"
"Do we have to fight? Even if we're family, for Ulster, it wouldn't be strange, right?"
"No, not that... You're a hero. I wonder if you'll jump in to protect that haughty pride of yours, it's just pitiful."
"... What?"
Kwaaaaaaaaaang!!!!!!!!!
"!?"
Below the building, the road explodes. A huge explosion occurs due to the runes I engraved on the road, cars running on the road at night explode, the sidewalk engraved with runes also explodes, and citizens walking the night streets die.
"That... did you do that!?"
"Yeah, it's a war."
"... Uncle, what on earth happened to you?"
"... I told you. You won't understand. Watch once. You're a hero, right? Or have you become a dog that only follows your Master's orders? Show me... proof that you are a hero."
I quickly use consecutive teleportation, gradually moving away from Cú Chulainn, and fly high into the sky.
And as I swing my staff, the building explodes and begins to collapse.
"Uncle!!!!!"
"Choose. Kill me, or... save the people. Even if you try to kill me, there's such a thing as mutual destruction, you know? Whether all of Fuyuki City disappears or not, it's none of my business."
"Tsk...!"
I reach my hand toward the sky, and dozens of rune characters rise around my hand as a spell is deployed. What falls is a meteor shower.
Whooosh!!!!
From the sky, boulders the size of people burn and fly toward the city.
Cú Chulainn quickly reinforces himself with rune magecraft and runs, smashing the stones before they hit the ground.
Tap...!
"Ah──"
Schwak!!!
And, descending to the ground, he cuts a panicking pedestrian in half.
"Fergus!!!"
"Watch. You're a hero, right?"
I use teleportation consecutively and cut down pedestrians faster than Cú Chulainn's speed.
A barrier is set up around here, so no one can enter. Electronic devices are paralyzed, information doesn't spread outside.
Anyway, the Holy Church will take care of covering it up, right...?
Clang!!!
"Why have you fallen so far!!!"
"Corruption...? Well. Maybe so. But... humans are inherently selfish. For my wish, I don't care if humanity perishes."
"You..."
"I never wanted to be a hero in the first place, Setanta."
Me, blocking Cú Chulainn's spear with my staff. Beneath his feet, runes drawn in a circle shine.
Kwaaaaaa!!!!
A pillar of soaring flames.
Cú Chulainn quickly dodges with beast-like instinct and thrusts his spear at me again.
As expected, since my body has dulled, close combat isn't easy.
Taat!!!
After jumping into the air from my spot, I leave the city center and throw a rune-made bomb into the city center.
Kwaang!!!
An explosion that destroys one overpass.
Cú Chulainn charges at me through the collapsing overpass.
"Sorry, but if I want to fight you head-on, this is the best way, right? First, I need to melt your reason. You're too much of a warrior."
Splash~!
A forest located on the outskirts of Fuyuki, I jump into the shallow lake in the forest, dodging Cú Chulainn's spear.
"Now let's fight properly! Have you even abandoned your pride as a warrior!?"
"Who did that pride protect? You fought and died for that pride, leaving your wife and foster son behind irresponsibly."
"That..."
"Pride, honor... I didn't need such things. What I wanted wasn't those things... It wasn't what Cathbad or others hoped for. So... will you die? Cú Chulainn. For my wish, I am willing to kill you, my nephew, over and over."
Schwaaaaaa!!!
"!?"
At that moment, a sinister and ominous black shadow emerges, rippling the lake water. The shadow, moving like tentacles, flies toward Cú Chulainn.
"What is this now!? Black magecraft!?"
"It's not my power... it's our cute Master. Master... seems to be hungry? It's an age where late-night snacks are well eaten."
"How far do you intend to fall!?"
"I'm fine falling to the bottom of hell, to the abyss. I'm fine making the world my enemy... I will do anything for my happiness. I'm sorry, Cú Chulainn. For being a selfish and trashy uncle. So, now die."
Cú Chulainn quickly throws rune stones to temporarily deploy a barrier and immediately performs a True Name release.
As the shadow's tentacles stretch and break the barrier, his spear is pulled back with all his might.
"{Gáe (Piercing──"
Charrrgle~!!!
"!?"
Iron chains wrapping around Cú Chulainn's arm. Medusa, who was hiding by the lakeside, reveals herself and restrains his entire body.
And, my staff transforms into a red demonic spear.
"{Curtana Bolg}(The Spear of Massacre that Carves and Pierces)"
Kwajik...!!!
My spear pierces Cú Chulainn's heart.
".... What on earth made you like this..."
"... Myself. I myself ruined everything. I don't hate the world. I don't resent you, or anyone else. What I resent is only myself."
"That's really a sad story..."
"... I'm sorry."
Schwak!!!
Roughly pulling out the spear, the shadow then ignores me, who is undetectable due to protection magecraft, wraps around Cú Chulainn, and slowly drags him into the lake.
"Are you okay?"
"Yeah. I'm fine. Even if he's my nephew, he's not that precious. He's a son I let go. He lived the life he chose, and this is the end given to one who wished to die fighting."
"I see."
"Let's go back quickly. Sakura seems to be hungry."
"... Understood."
Medusa looked at me with uncertain eyes, and I returned to the Matou residence with her.
I gave her the cake I bought during the day.
"Thank you for the meal."
"Late-night snacks make you fat, Sakura."
"... It's okay. If I exercise, it'll be fine."
"Your breasts will get bigger."
"P-Please don't say such things!"
"Hmph... You said you'll sleep after studying? I'll at least tidy your hair."
"Ah, thank you for that."
Her appetite has increased a lot recently. Even though it's a growth period...
The progress is fast. Yes, that's it... Eat well and grow well, Sakura.
Become the Holy Grail for me.