Y/N is the brother of Hayato and Karen, but holds the powers of both Bahamuth and Sans. As he starts his fights, he captures the hearts of various girls.
(Y/N is seen in a garage as he is building a car. Suddenly Hayato and Emile come in.)
Hayato: Didn't know you liked classic cars.
Y/N: Yeah, brother. I'm a sucker for 'em. : Well, this car is automatic. (poses) It's systematic. (poses again) It's hydromatic. (poses once more) Why it's greased lightning.
Hayato: Greased Lightning!
Y/N: 🎵We'll get some overhead lifters and four barrel quads, oh yeah.🎵
Hayato: 🎵Keep talking, whoa, keep talking.
Y/N: 🎵A fuel injection cut off and chrome plated rods, oh yeah.🎵
Hayato: 🎵I'll get the money, I'll kill to get the money.🎵
Y/N: 🎵With a four-speed on the floor, they'll be waiting at the door. You know that it ain't shit, we'll be getting lots of tit, greased lightning.🎵
Hayato/Emile: 🎵Go go go, go-go-go-go-go-go-go-go🎵
Y/N: 🎵Go, greased lightning, you're burning up the quarter mile.🎵
(They build the car while they dance. They place the car body, the tires, the engine, the safety belts, the steering, and many other important parts to make sure the car works properly. As they finish building the car, they get amazed by the results.)
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Y/N: 🎵Go, greased lightning, you're burning up the quarter mile.🎵
(After building the car, Y/N is seen ready for another day until he gets hugged from behind by Jeanne Alter.)
Jalter: I was wondering where you were, darling. I was building a classic car.
(Some moments later, Y/N is seen facing Merlin.)
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Merlin: Do you believe you're worthy of your so-called title?
Y/N: Dude, they don't call me the Ultimate Bahamuth for nothing.
Hayato: And besides, he already defeated the "Perfect Queen" and the "Queen of Heroes", the most feared at Little Garden.
Merlin: They don't seem upset about this.
Hayato: Maybe they accepted the reality.
Merlin: Enough of this!
Y/N: You're right... quite enough... (closes his eyes) it's a beautiful day out there, huh? Birds are singing... flowers are blooming... in days like this... fake prophets like you... (eyes glow and dark tone) should be burning in hell!
(Merlin and Y/N clash their swords, but the latter shoves the former with his telekinesis and starts slamming him with his telekinetic powers Ermac style, and finally he summons hundreds of Gaster Blasters as they shoot him down, easily defeating him.)
Y/N: You lose.
Hayato: Not impressed. This always happens.
(Y/N and Hayato leave the defeated and bruised Merlin behind as the screen fades out.)