These were Issei's last thoughts before he died.
But what he didn't see was a red teleportation magic circle forming beside his dead body and a certain red-haired Ruin Princess stepping out of it.
(Scene change: The next day)
"You really don't remember Yuuma-chan?" Issei, a fully revived and healthy Issei, was hoping his friends would remember anything about his girlfriend but it seems the perverts had totally forgotten about Yuuma-chan.
As if that wasn't weird enough, everything Issei had about her, like her phone number and her house address, was erased.
His friends thought he was delusional and the brunette thought it was all a dream too, but it all felt so real.
Issei shook his head to clear all his thoughts.
He woke up early morning in his bed, as if nothing happened yestereday. It was like he had a vivid nightmare. He woke up and did his morning ritual but he only noticed something was truly wrong when he couldn't find anything relating to his girlfriend.
He gripped his air in frustration and cried out to the sky. His venting was cut short when the girls of Kuoh began gossping about.
"Hey, did you guys hear about the hot, new biology teacher?" a random girl asked.
"Yes, I heard he just applied yesterday."
"Do you think he's single?"
'"Kya! I heard he's going to teach our class!"
Issei released a loud groan of utter exasperation. Kiba was already big enough of a competition, he didn't need a new one. The brunette slammed his head on the table with a bang in protest of whoever this new teacher was. Forget Yumma, he needed to protect his turf, Class 3-B.
The front door of class 3-B slid open and a tall, blonde man wearing a black tuxedo on top of a black turtleneck with black pants and a matching pair of shoes waltz in with an aura of confidence and power.
"Good morning class. I'm your new biology teacher, Uzumaki Naruto," He introduced himself with a straight face.
Several squeals from the female students filled the air, they were going on about how cool and handsome the blonde was
"Oh, Naruto-san!" Issei was astonished to see his neighbor in school and as a teacher no less, he shot up and pointed a finger at him out of habit.
"Oh, isn't that the perverted brat? Something about him's changed," Naruto mused in his mind.
"Hey, Hyoudou, and it's Naruto-sensei to you," Naruto acknowledged the brunette.
Everyone was astounded by the fact that their perverted classmate knew the blonde teacher.
Issei was going to ask Naruto if he remembered Yuuma-chan but knew that now was not the time for that.
Naruto wrote the topic of the day on the Blackboard and started to elaborate on the day's topic for the students.
(Scene change: Break time.)
Rias Gremory was in the Occult Research Club beside the window in her office looking down at the busy humans going around the school premises until her attention was drawn to a blonde man in black sitting on a bench with his eyes closed.
"Akeno, who is that?" Rias pointed at Naruto.
"Ara, that's the new biology teacher," Akeno Himejima, Rias' queen and best friend, one of the Two Great Onee-sama of Kuoh Academy, said.
Rias stared at the blonde shinobi for a while before diverting her gaze back to a white-haired petite female student in front of her desk.
"Keep an eye on him and, if you notice anything out of the ordinary, report back to me," Rias ordered her Rook, Koneko Toujou.
Naruto was really annoyed. The fangirls of this world were on a completely different level compared to the ones in the elemental nation.
His sensitive ears picked up on the comments of the students no matter how much he tried not to.
"Ahh, Naruto-sensei looks so handsome with those black marks on his face."
"I love Naruto-sensei."
"Kyah! I wish I could sit by Naruto-sama!"
"Lucky bastard."
"Go die, Blondie."
Naruto's eyes twitched at that.
This school was like any normal school except it had those blasted supernatural bats disguised as humans schooling amongst them.
After absorbing the doc's soul Naruto gained a lot of info on the supernatural world. He could sense supernatural beings If he was in Sage Mode. They felt inhuman and a devil's aura had a dark but not necessarily evil feel to it. He remembered his first encounter with a devil and when he learned that nature, in this dimension, was angry at everything.
(Flashback)
After busting out of the hospital he was held up in for a week, Naruto knew he had to find a place to lay low for the meantime.
The doctor worked for an organisation known as the Hero Faction. This organization collected different kinds of Sacred Gear users to rid the world of devils and fallen angels. They recruited special people with special abilities using any means necessary to initiate them into the organization.
Naruto didn't have time to deal with this organization, not when the Elemental Nations inhabitants were still under the influence of the Mugen Tsukuyomi.
The knucklehead ninja wondered how long it would take before everyone back at home would turn into white zetsus. It was a race against time and the problem was a ticket to the elemental nation but for now, he had other worries like how he'd survive in this alien world.
It was a miracle his Hiraishin kunai landed in Japan when he threw it through that hole. Where Kaguya's technique brought him to was very dangerous, Naruto had no doubt he would have died if he was not Kurama Chakra Mode.
He navigated his way from the hospital to the forest in the distance. With his destination decided, he pumped chakra into his legs and with a mighty hop he was gliding in the air and he had a birds eye view of the city.
The view was so beautiful from up there, the lights, the roads and the cars on it, the skyscrappers compared to the small buildings and the dots that signified the humans walking down the street.
He should hog all this to himself alone. His partners had to see this he thought.
"Kurama?" Naruto received no reply and thought the Biju as sleeping. He couldn't go inside the seal and wake the poor fox over something as feasible as sight-seeing lest he incurs the wrath of the great fox.