First simulation

"So I'm in another world now?" Tatsumi said as he carefully looked at himself in the mirror

[That's correct host] A mechanical voice replied in his head

"Then assuming from the memories I got I'm currently in the world of Highschool of the Dead" Tatsumi asked

[Well not exactly host] the mechanical voice replied

"Huh what do you mean?" Tatsumi asked

[Well you're currently located in a world that's a mixture of multiple worlds. So although there may be some similarities in between this world and the world that you know they are however completely different]

"Hmm is that so? Then no wonder this world seemed a bit off compared to how I remember it in the anime. I just thought that this world was Highschool of the Dead since the school I am attending is named Fujumi academy. But If it's as you say then this alters things assuming that this world won't follow the same plot as in the anime."

[That's correct]

"I already have a few guesses of which worlds are mixed with this world but can you tell me which world's are mixed along with this world besides Highschool of the Dead?"

[I'm sorry, I cannot as I'm also not sure of which worlds are mixed together with this one]

"Is that so? Then I guess I'll just have to figure out along the way then. For now the other worlds that I'm certain that are mixed with this world are Highschool DxD, Testament of sister new devil and my girlfriend is a zombie. Seeing as there's a kuoh academy that recently became coed here. And Ye lian, Li yalin, Stella, Mio, and Yuki, the heroines from the other two franchises that I mentioned are attending my school."

[That seems to be the case]

"In any case none of them spell good news for me. All of them are very dangerous worlds. A normal person like me won't stand a chance against the likes of demons, angels, and gods. Not to mention now that theres going to be a zombie apocalypse."

[Don't worry host you still have me by your side to help you]

"You're right, Anyway what should I call you? I don't want to just keep calling you system all the time."

[I don't have a name host]

"Then how about I give you one?"

[I would like that]

"Hmm how does Alice sound to you then?"

[It's a great name host]

"Then Alice it is. Anyway Alice do you know when the zombie apocalypse will start?"

[In approximately two weeks]

"I see, that's enough time for me to prepare then. Can you tell me what your functions are for now"

[I'm a simulation system meaning I have the capability to simulate your life in other worlds and give you rewards based on your performance]

"Oh? Then can I do one now and can I choose the world that I want to simulate into?"

[Yes, you can start a simulation now however the world that you will go to will be chosen at random]

"Oh, that's too bad then can you do one for now anyways before I head out for class."

[Understood]

[Starting simulation]

[Choosing random world]

[World chosen: Highschool of the Dead]

"Huh! Can this world still be simulated?"

[Yes as it is considered another world completely different from the one that you are in.]

"I guess that makes sense."

[Now then host please choose 3 out of the 5 perks to bring along in your simulation]

[ Swordmaster(Blue), Rich boy(white), Gunslinger(blue), Strong body(Purple), Cowardly man(White)]

"Oh! Can I still choose perks?"

[Yes and they are ranked white, blue, purple, red, and gold. With white being the lowest and gold being the highest.]

"Then let's go with Swordmaster, Gunslinger, and Strong body. As they seem to be the most useful"

[Understood host, perks chosen]

[Swordmaster(Blue): Allows user to have a better understanding and talent in swordsmanship.]

[Gunslinger(Blue): Gives user a higher proficiency in using guns.]

[Strong body(Purple): Grants user a strong healthy body resilient to all diseases and poisons.]

[Beginning simulation]

[Day 1: You are born as the third child of the prestigious Sasaki family located in Japan.]

[Day 2: Having just been born you decide to take things easy and carefully try observing your surroundings. After some digging around you find out that you are an illegitimate child born from your father's mistress, from the surrounding maids. This has caused you to be shunned out from the rest of your family. Having found about this you begin planning out your future steps]

[Year 8: Being an illegitimate child has been tough on you. For the past eight years you have constantly been beaten and malnourished. However, thanks to your strong body you have been able to survive and stay healthy till now. You also haven't been idle though. For the past eight years you have been able to make a consistent flow of money by publishing novels from your previous world allowing you to make a total of 1 billion yen. You ended up secretly buying a house through a random broker and soon planned to leave.]

[Year 8, day 5: You end up getting into a fight with your elder brother over a small problem. During one of your families social gathering the girl he liked expressed her interest in you. Angered by this he wantonly expresses his hatred towards you and starts a fight. The final result? Him with two purple eyes. However, this causes your parents to be angry and kick you out. As you leave you give them the middle finger]

[Year 8, day 6: Due to your age you weren't able to find a hotel to sleep at thus you slept on the streets the night before. After a bad night's sleep you decided to head out and go to your new house. On your way there though you end up bumping into a beautiful blonde haired woman who looked curiously at you. She asked you where your parents were and seeing how kind and harmless she looked at you you decided to tell her the truth. After hearing your story she couldn't help but shout out in righteous indignation at how cruel they were causing you to feel warm inside. She offered letting you stay at her house. You wanted to reject but seeing her hopeful face you couldn't say no. Thus you ended up following her and staying at her place.]

[Year 8, week 1:  You end up waking up in an awkward situation. Being hugged by the naked blonde haired woman. As you were about to wake her up a tanned woman with purple hair proceeds to barge into the room and looks at the two of you in utter disbelief. You later find out that her name is Rika Minami and the one who took you in was named Shizuka Marikawa. You were shocked to find out that the two of them were the heroines of this world. Having found out about your situation Rika welcomed you to stay. You were a bit hesitant at first but you decided to stay and see if you could get close to the two of them and learn how to use a firearm, remembering that Rika was a special agent.]

[Year 8, month 6: The time you stayed with the two women were your happiest time since coming into this world. The kindness and love that they showed you gradually made you grow fond of them. You decided that you will do your best in the future to protect them. Through some heavy persuasion you were finally able to convince Rika to teach you how to use a firearm. Surprisingly you were very good. However you were still worried and urgent about the future. You knew that you couldn't stay with the two any longer and needed to prepare but you were reluctant. However You still told the two of them in the end. Skizuka cried and didn't want to let you go while Rika just looked at you sternly and asked you why you wanted to leave. You couldn't tell the two of them so you just told them that you found another place to stay. They didn't' believe you so they decided that if you were to leave they would go with you. You had no opinion and were happy to agree. Thus you all left that day and moved into the new house you bought]

[Year 15: Some time has passed since you all moved in together. You have gradually matured and were about to start your first year at Fujumi academy. During the past 7 years you were able to collect and buy supplies with the money you've earned. Gradually fortifying the house and preparing for the apocalypse. You were also able to learn swordsmanship by attending a dojo and becoming a student of master Busujima. The father of Saeko Busujima, who you met and communicated with on a daily basis. You were also surprised to find out that you were neighbors with Rei Miyamoto. Allowing to get close and acquainted with her. Feeling more confident in yourself you go on and head out for your first day at school.]

[Year 17: The time you spent at school was leisurely. Sleeping in class and getting good grades and with your good looks you gradually earned the title of the slumbering prince. During this time you became acquainted with the rest of the cast. More so with Saeko who after many years with you gradually opened up to you. Revealing her dark past and sadistic nature. Explaining how she was scared that you would reject her like everyone else would. Only for you to deny that and explain to her how you wouldn't since you didn't find it wrong for her to look down and hurt does who tried to hurt her. Thus starting a relationship with her and becoming the most popular couple in Fujumi academy. Causing many boys and girls to weep. Including Shizuka who after finding out cried all day long and explained to you how you were only hers. Getting drunk and forcefully kissing you before being knocked out by Rika.]

[Year 17, week 1: You knew that the apocalypse was close to starting so you asked Rika to stay home and not go out for any mission. When she asked you why you only responded to her with a serious face. Knowing the severity of the matter and having found out some clues with her time with you she hastily agreed to your request.]

[Year 17, day 8: You buy the last amount of supplies you can get and carefully prepare for tomorrow. You call Saeko over and explain to her along with Rika and Shizuka that the world is going to completely change by tomorrow and that the law won't be able to keep them safe any longer. Seeing the serious expression on your face they decide not to question you and place their complete trust in you knowing that you would never lie to them. You hand Saeko a new katana and asked her to bring it with her to school tomorrow and told Rika to prepare her guns. They both nod]

[Year 17, day 9: The day has finally come. Instead of going to class you decide to skip class and head to the school rooftop along with Saeko and Shizuka. You take out the gun and katana from your bag and put them around your waist.You have done the best you can do to prepare and had even warned the rest of the main cast. Only for them to ignore you. Now, you can only hope that luck is on your side. Looking at the entrance of the gate you see a man banging on the gate. Seeing the teachers heading towards the gate and reprimanding the man, you clench the hilt of your sword and get ready for what comes next. As a teacher gets closer to the gate they are suddenly grabbed and bitten in the neck by the man the next second causing the surrounding teachers to yell out in horror. Seeing this scene you know what it means. The apocalypse has begun.]