Ye Han created a small hiking backpack that contained a pack lunch and a water bottle, he then wrote a giant note in front of his shop that he will be closed for today as he wanted to go hiking and maybe tour around the old Kunugigaoka Junior High School in the mountains. He ran faster than the speed of mach 20 as he wanted to arrive in the entrance of the mountain forest within a minute, the people he passed by only saw a blur like shadow which made them feel like there was a ghost a few seconds ago. He stop when he saw the giant forest growing and was covering the hidden area of the mountain.
He began to hike as he thought what creatures could he see in this location, he wondered if Kobayashi had already met the future maid dragon she will be taking care off. He shrugs it off as while he was walking in the middle of the forest, he saw a albino deer staring at him curiously. He was astonish that it went close to him and started to sniff his chest, Ye Han gave it a good head pat as it close its eye and enjoys it. Ye Han then took a photo with the cute albino deer who seem to understand what he was trying to do. The albino deer tried to smile and its eyes turned into crescent as the smile turn into a small grin, he took a few more photo before giving the albino deer a treat.
Ye Han continued on his journey toward the school, he was a few km away and still had the time to see some more cute animal like a 6 feet bear looking at him with a ferocious expression, it was like the bear was saying "Human! You dare enter my territory?! Die!!". Ye Han just taunted with a "hand gesture called come here", the bear charges at Ye Han who only smiled and walk slowly toward him. The moment they clash with each the bear suddenly get knock unconscious as Ye Han gave him a hand chop onto his head. He didn't took the bear's life as he saw a few cubs was looking at him with fear and anger, he sighed and left them some meat on the ground which would help their bloodline mutated into a stronger one.
Ye Han continued on his quest to find the old hidden junior high school that was within the forest range between the mountains. It took him an hour to arrive where he saw a school sport's field, he saw the students and two teacher, one which he is familiar with and one he assumed is the military guy who is teaching the students how to kill one of their teacher with basic knife form. He only remember watching like one or two episode so he wasn't familiar with their plot also Ye Han wondered how there were different anime mixed in the fate universe, he shrugs it off as it isn't dangerous for him and his family. He walk closer to them with a surprise look expressing "there was a school in this mountains?!".
While he was walking toward them, the students stop from their knife training as the girls started to blush while staring at the random stranger walking from the mountain forest while some of the guy felt like their preference has change while some felt that their looks was sh*t compared to this guy. Tadaomi Karasuma saw his students staring behind him which made him ask
"Why did you guys stop?"
"Sensei *points at Ye Han*" -Nagisa
Tadaomi turns around and saw a hiker walking towards them, his eyebrows furrowed as there should have been no hikers within this mountain with the government securing for them, While Korosensei turned white like a ghost when he saw his favorite restaurant's chef walking towards him. He wanted to run as he was worried his race was found out. It was like a silent game as Ye Han arrives in front of Korosensei and he started to act, he said
"Oh! Mr. Teacher that is a nice costume you are wearing. It looks realistic..."
"Ah?!" -Korosensei
The students fell down to the ground as they thought the hiker is familiar with their teacher and he doesn't know the teacher was a alien. Tadaomi sighed and thought this guy was harmless while his instinct which was rusty told him Ye Han was dangerous. Korosensei's face was very blank for a minute before he impatient said
"Ah yes! this is my costume as my students wanted me to look like a octopus!"
"oooh, even the tentacles are moving! Where did you buy this kind of costume..."
"It was custom made by my friend who has passed away..."
"Ah, I shouldn't have ask..."
"its alright, making me wear this made me remember of him...."
Korosensei used his speed mach 20 to look at books and magazine such as excuse 101 on conversations, Ye Han laugh internally as he could see him in slow motion. He then turned around and saw all the student were looking at him, he said with a apologetic expression.
"Looks like I interrupted your physical education exercise...I apologize."
He bowed slightly which made the girls guilty while the boys who thought their change preference nearly raise their hand and say "Its alright!". Karma who just arrived at the scene thought "hmmn Interesting...So this is korosensei.", he was too focus on planning his fun with the alien rather than think of the pretty boy Ye Han. He sat closed to Korosensei as the students continue to practice their knife exercise. Ye Han whispered
"Mr. Teacher, why is your class in the mountains? and is your school military based?"
"Well, the main building of the school didn't had extra room so the principal permitted the use of this old building which was the old main building of the Kunugigaoka preschool. The school required that the student should be required to learn self defense.."
"but does self defense require a knife?"
"I think so?"
Korosensei was running out of words to say and hope Ye Han would stop and believed every word he said, Ye Han was laughing so loud internally but manage to act calm and give a curious look. He said
"Its weird that this wasn't mandatory in my school.."
"Oh where did you study?"
"Hmn depends, since I studied in a lot of university before such as University of tokyo or....."
Ye Han spouted out different universities and showed him fake pictures of him in his graduation with diploma, he had a medical doctor license, culinary certificate and etc. He made this certificates while he was doing his Memory Alternation operation. Korosensei was gasping in surprise and then it turn to a unbelievable expression. He suddenly ask
"Mr. Chef how old are you?"
"I'm 38 years old.."
"Eh?.....EH?!!!"
The whole class stumbled as they overheard their conversation, Ye Han didn't even look like 38 years old. He look like he was in his mid 20s and he didn't have any wrinkle in his face. Karma even had a shock expression and seriously thought "How did he manage his body to be this young looking?"..
(author: Ye Han is actually older if you count the time ratio in the Absolute Immortal Spirit Realm and the time ratio of different universes. The age I select for our MC in this universe is actually half a million, but I picked 38 because 20 years in DD and 16 years in Danmachi and everytime he travel to another world I add a year which made me pick 38, also it has a good symbolization check it in the internet.)