Hearing Tohru's answer, he slowly closed his eyes. When he opened them again, they had turned cold.
"So be it. Then let me see the power that makes you dare to defy me."
After throwing down these words, the black-robed old man coldly swept his gaze over Yusei and Tohru, then vanished into a black spatial vortex.
The black vortex did not disappear. Tohru also understood the meaning behind her father's final words.
Tohru looked at Yusei, forcing a smile.
"Yusei, leave the rest to me. You stay home and rest well. I'll be back soon."
"Don't talk nonsense. You lost the arm-wrestling match. If anyone has to stay home, it should be you," Yusei refused without hesitation.
Tohru lowered her head, seemingly thinking about how to persuade Yusei.
Yusei smiled slightly and squeezed the small hand he held, "Let's go. Perhaps neither of us alone is strong enough to defeat him, but together, we definitely can."
Hearing this, Tohru was momentarily stunned, then smiled almost imperceptibly.
"You're right."
The anomaly over Tokyo came and went quickly. The dark clouds that had covered one area vanished without a trace, as if nothing had ever happened.
It was just that the people in that area had no idea what had happened no matter what. In their last memory, they had suddenly felt very tired and then fallen directly asleep.
This incident attracted high-level attention. Special investigation units quickly arrived in the area to investigate. But the otherworldly visitor who was the root cause was already in another place.
Yusei stood on Tohru's head, looking at this new world, his eyes narrowing.
Based on his perception, the energy in this world was extremely dense, far more so than in his own world.
In the distance, with the visual acuity of the Sharingan, Yusei could even see black dots skimming the horizon. Those were also dragons.
"Is this your world?"
"Yes, this is the Dragon Clan's training grounds. We usually come here for combat and sparring," Tohru answered from beneath him.
With her father's portal, she quickly brought Yusei before her father.
Seeing Yusei standing on Tohru's head, the black-robed old man didn't say much, but his body suddenly transformed into a red dragon.
"Foolish daughter, it seems you are utterly stubborn. Very well, let me beat some sense into you today."
As he spoke, he looked again at Yusei on Tohru's head, saying disdainfully, "Tohru keeps saying you saved her, but I don't believe it. I don't trust human character, nor do I trust human strength."
"Whether you believe it or not is irrelevant, because you're about to witness it for yourself," Yusei said calmly, not provoked.
"Haha, good! Then come on!"
The red dragon laughed, but his movements were not slow in the slightest. His massive draconic form charged forward directly, his speed extreme.
Tohru hadn't anticipated such speed either and couldn't dodge in time.
The Mangekyo in Yusei's eyes instantly spun. A blue energy phantom rapidly covered Tohru's entire body.
Facing the charging dragon, under Yusei's Susanoo, an arm reached out and pressed directly against its head.
"Oh? A mere human can block it? Then..."
Black energy spread from Tohru's father's body, quickly forming intense fluctuations. The force on the arm of Yusei's Susanoo suddenly increased accordingly.
Yusei frowned slightly. Coordinating his left and right eyes, he switched to the Sunshine Girl's ability.
The already cloudy sky now rumbled with constant thunder.
The power of Sunshine Girl required no preparation time; it was almost instantaneous.
A massive blue-white lightning bolt struck Tohru's father, causing the black energy shield to flicker.
Yusei, who was also struck, had the blue Susanoo covering him glow brighter and become more solid.
Seeing this, Tohru's father nodded almost imperceptibly, then flew backward, no longer choosing to clash head-on.
He was observing, observing the connection between the lightning and the increase in Yusei's power.
He couldn't discern it during the fight, but now, looking carefully, he had a rough idea.
"I see. You increase your power through lightning? You and Kanna are both users of the lightning element," Tohru's father said, as if in admiration.
"However, this isn't enough. I want to see exactly what power makes you boast that you can save Tohru, protect Tohru!"
Intense energy gathered in his mouth. The shimmering black energy formed something resembling an energy cannon.
Yusei was not unfamiliar with it, because Tohru could do it too.
Standing on Tohru's head, Yusei said to her, "Tohru, use maximum power. I'll coat the outside of the energy with lightning power to increase its destructive force. The two of us together can definitely defeat him!"
"Okay!"
Tohru responded. Intense energy gathered, but in reality, it couldn't compare to her father's.
Whether in strength or experience, she was far inferior to her father.
But now, she had Yusei fighting alongside her.
The Susanoo-cladded Dragon… back in SAO, Yusei had once used it in coordination with Kanna, with excellent results.
Now, coordinating with Tohru, who was stronger than Kanna, the power of the Susanoo-cladded Dragon naturally reached a higher level.
Blue-white lightning wrapped around a red energy beam, which Tohru directly fired.
As if deciding to clash directly, Tohru's father neither dodged nor avoided it, instead firing a black energy beam of his own.
The two dragons' attacks collided. A mushroom cloud rose from the center, accompanied by blue-white lightning filling the area.
Yusei had too few offensive abilities in his eyes, only the Sunshine Girl. But sometimes, when facing powerful enemies, even Sunshine Girl's attacks couldn't break their defenses, which gave Yusei a headache.
But right now, he had no time to think about other things.
He had glanced at the abilities on Tohru's father's body earlier, but they were all pure energy techniques.
These pure energy techniques had excellent power and effects, but the trouble was their massive consumption.
The ability of his right eye was to strengthen or weaken an ability based on his own energy relative to the original ability's cost.
This kind of energy attack was purely a matter of strength, and what it consumed was precisely energy, with no room for maneuver.
Simply put, if Yusei wanted to launch an attack like the one the opponent just used, his energy would be drained in an instant, which was completely not worth it.