Forbidden

Two days earlier, in the Laboratory.

"Oh... Alphys." While fiddling with something that looked like a paper talisman, Linde pointed at Mettaton, who was helping nearby. "Remember to give her NEO form the same metal plating as her current box form. That way, she'll have both offense and defense."

"Oh, o-okay." Alphys froze for a moment, but remembering all the seemingly prophetic things Linde had done, she dismissed her doubts and decided to install it that night.

After agreeing to Linde's request, Alphys returned to the adjoining research room to continue studying the blood samples provided by the two children with Gaster.

Linde continued simulating magical bullet patterns. At last, after pouring everything he had into his analysis, he fully understood the mechanics of Fire Magic.

Using magic power to imitate elements was simply too inefficient. In the end, he still had to rely on determination's ability to fuse things together.

Under the combined effects of determination and magic power, an enormous flaming greatsword appeared in the Laboratory. Fortunately, Gaster's Laboratory in New Home was spacious; otherwise, a sword that large would surely have caused a commotion.

Interestingly, although it was a flaming greatsword, he felt no heat at all as its wielder, while Frisk beside him clearly found it scorching.

Is it really that amazing? Linde chuckled to himself and prepared for the final step.

Now comes the hardest part... Linde took a deep breath and produced a Spell Card condensed from the power of determination.

The flaming greatsword compressed into a tiny, dazzling point of light.

Delighted, Linde was just about to fuse it with the Spell Card...

Boom-

Save loaded.

Seeing Frisk's murderous expression, Linde scratched his head awkwardly. "I... I'll try again... One last time..."

This time, Linde dared not let his attention wander for even a moment. Only after concentrating fully and placing the point of light completely inside the Spell Card did he relax.

"Whew-"

"Frisk, get ready to load. I'm going to test how powerful this is." Linde gave an embarrassed smile, then injected magic power into the Spell Card.

The determination enveloping the Spell Card dispersed as the magic power entered, and a flaming greatsword suddenly appeared.

Save loaded.

Linde planned to give it to Undyne. As for why, it was naturally because of a crossover song he had heard in his previous life-a crossover song featuring Undyne and Flandre.

"I'll add a little more, then hand it over to Undyne." As he spoke, Linde produced diamond-shaped and spherical bullets from his hands...

Ye Yu had already died more than twenty times under Undyne's attacks.

Every time, her attacks varied wildly, completely different from those before his last reload. That made it impossible for him to dodge by memorizing the patterns.

Fortunately, his dodging skills were growing increasingly polished, and he was finally approaching the ten-minute mark...

Undyne felt another force rise within her, forcibly reverting her to her original form.

Seeing this, Ye Yu did not hesitate. He kicked hard against the ground with both legs and lunged at Undyne.

Yet the confident smile on Undyne's face forced him to stop in his tracks.

Undyne sighed. "I really can't stop you after all... But... at least... let me kill you a few more times!"

As she spoke, a Spell Card appeared in her hand. Like a character in an anime, Undyne shouted the move's name with melodramatic flair-

"Forbidden!"

In an instant, a dazzling light flashed, and a gigantic sword made of flames abruptly appeared in Undyne's hands.

Although Undyne herself could not feel its searing heat, the sight before her still filled her with amazement.

The rain that had been falling steadily evaporated without a trace the instant it drew near the flaming greatsword.

So powerful... Undyne was filled with admiration for Linde's strength.

Then Undyne gripped the hilt tightly with both hands and swung with all her might.

With her swing, countless spherical bullets, each the size of a person, shot from the blade like arrows loosed from a bow, filling the entire sky at astonishing speed.

These spherical bullets shone brilliantly, weaving together and colliding to form a dazzling curtain of light.

At the same time, countless diamond-shaped bullets surged like a tide from the hilt in Undyne's grip, rapidly spreading in every direction.

They darted freely through the air, their radiance mingling with that of the spherical bullets to create a breathtaking yet deadly scene.

This was the beauty of bullet patterns unique to Touhou.

The corner of Ye Yu's eye twitched. Uh, this is magic, right? Then... do I even need to dodge?

[There is determination mixed into it.]

The Subsystem's notification appeared before Ye Yu. He froze, then immediately began dodging through the incredibly dense barrage.

This barrage was far denser than any he had seen before, but... fortunately, he could still dodge it...

Watching Undyne suddenly sweep her sword toward him, Ye Yu's eye twitched slightly as the flames swallowed him.

"Something's wrong with this world. These monsters' abilities are far too strange. Even though I never played Undertale in my previous life, I'm certain their abilities weren't supposed to be like this," Ye Yu declared to the Subsystem after returning to the Void Space.

[Yes, none of this was supposed to happen. It is all because of Linde's interference.]

"I'll kill him sooner or later," Ye Yu said coldly.

Hearing this, the Subsystem was immensely satisfied. Good. It seems this fellow is gradually being consumed by LOVE completely. With killing intent this intense... there's certainly no need to worry about any so-called compassion getting in the way.

Under the Subsystem's satisfied gaze, Ye Yu pressed the [Continue] button again.