[Lucas: "And then? Will your father allow you to become my disciple? And even if you do, how will that change his mind?"]
Lucas asked with some curiosity. He had a slight impression of Rin's father, Tokiomi Tohsaka.
He remembered a very rigid man, always perfect and thorough in speech and conduct, meticulous, with the elegance of a nobleman.
Of course, the main reason he left an impression was that he was Gilgamesh's Master.
Disregarding various side stories, Gilgamesh was undoubtedly at the ceiling of combat power in the Grail War world.
Timeline-wise, the Fourth Holy Grail War should be starting soon.
[Rin: "It will definitely work! As long as you show your Magic Circuits, Lucas-nii, Father will absolutely not refuse."]
Others might not understand the gold standard of the Magic Circuits Lucas uploaded; they only knew the price was terrifyingly high.
But Rin knew very well. Those were Magic Circuits the likes of which had never been seen in history.
As long as her father saw them, he would definitely go crazy for them.
How could he refuse?
[Rin: "Then, Lucas-nii, you can say you'll pass your Magic Crest to me. That way, I won't be able to inherit the Tohsaka family's Magic Crest. To preserve the family lineage, Father will have to choose Sakura. Then Sakura won't have to be sent to the Matou family."]
Lucas was somewhat surprised. Although he sensed from their chats that Rin was quite clever despite being a bit mischievous...
She really couldn't be treated like a child. Seeing this now confirmed it.
The little girl's analysis was logical and grounded, like a little adult. Is she a genius?
[Lucas: "Alright, I can help with this."]
[Rin: "Thank you, Lucas-nii! You're the best! It's just a pity that the points I worked so hard to save will be used up again ( >﹏< )3."]
She had been saving points diligently to buy Lucas's Circuit Development Method and Magic Armor Construction Method.
To this end, she had been sweet-talking Kanae and Whitebeard these days calling them "good sister" and "good old dad", her mouth as sweet as honey.
Summoning Lucas might send her back to poverty overnight.
[Lucas: "You don't need to worry about that. When the time comes, find a place where the wind blows and try calling my name. At the same time, @ me in the chat group. I'll see if I can go directly."]
[Rin: "?(???)?"]
[Lucas: "Didn't I kill a Heretic God a month ago? That god's Authority has a First Avatar: Gale. If someone familiar calls the user's name, and the user senses the call, they can use the wind to teleport instantly to the caller's location. Distance doesn't matter; it can even cross worlds."]
[Lucas: "Actually, I'm not sure if I can make it. If you just call me, I definitely can't sense it across different worlds. But the chat group bridges that gap perfectly."]
[Rin: "Σ(oﾟдﾟo)!! God Lucas is invincible!!"]
[Lucas: "It's no big deal. It can only be used once a day. It's just convenient for crossing worlds; it doesn't help much with combat strength."]
The Fairy Tail world had various powerful spatial magics, like Teleportation and Territory, which Lucas had listed as must-learn subjects for the future.
Not just spatial magic, but time magic too—Time Stop, Time Reversal. The powerful ones could even cross the river of time to the future.
With so many powerful magics waiting to be learned, the Authorities of Heretic Gods didn't hold much appeal for Lucas.
[Rin: "Wuuwuu! The things you don't want are treasures I can't even dream of reaching!"]
[Lucas: "Alright. When you need me, just @ me."]
[Rin: "I got it. Thank you, Lucas-nii."]
Lucas closed the chat group panel.
Turning his head, he saw Erica looking at him with burning eyes.
"What's... wrong?"
Her intense gaze startled Lucas.
"Honey, you can cross worlds?"
"Probably. But I need the help of the chat group; otherwise, I can't sense it at all."
"That means if I want you in the future, I can just call you directly, right?"
"Yeah, that's right."
"That's great! Now I can be with my husband often."
Erica threw herself onto Lucas, speaking happily.
The main reason she hadn't contacted Lucas for a while wasn't female reserve, but simply because she didn't have enough points.
She was working hard to save points so Lucas could stay longer next time, like today.
Now that she didn't need points to bring Lucas over, this was the best news for her.
This Authority might be useless to Lucas, but for her, it was the most useful one.
Erica calling him "husband" made Lucas's bones go soft. It was the first time he heard a woman call him that.
Immediately after, the great battle commenced once more.
The battle lasted all night before gradually subsiding.
Watching the sleeping Erica, Lucas opened the chat group panel and clicked return.
Whoosh!
Lucas returned to the Fairy Tail world.
Phew!
Lucas let out a sigh of relief.
Fortunately, he practiced the Dragon God Transformation. Otherwise, how could a fourteen-year-old body withstand this?
He killed a Heretic God, but if he couldn't beat a woman in bed, where would his face go?
Lucas took a shower, tidied up, and checked to ensure no marks were left before heading to the guild.
Going to the guild every day had become Lucas's habit.
It was like punching in for work. Even if he just went there to slack off, he liked staying at the guild.
Although he could actually stay in the Campione! world, he always felt out of place in other worlds.
And the existence of those gods made Lucas feel a bit insecure. Although he looked down on those Authorities, he didn't look down on the gods themselves.
Verethragna alone was already that strong. If a few more Heretic Gods appeared, would he be their match?
He had to become stronger.
In the end, he belonged to the Fairy Tail world.