Adding the ghosts from the anime: Mieruko-chan is a whim on my part. I fused it because it seemed fun and won't have many consequences. I also have Servants and spells that can wipe them out, so I don't need to defend against ghosts.
I look around with the All-Seeing Eyes of God and many spirits near my place. I then have my Servants go and kill those that look evil. I remember watching an emotional clip from that anime. That's why I only order to kill evil-looking ghosts.
'I used to be afraid of ghosts, but now I can eliminate them all. Hah.'
I then lay down on the bed. I don't know what to do next. It's boring, and there is nothing to do. I conclude to have a time skip. It's boring being a child, so it's time to add more varieties. With that determination, I then order the System.
"System, activate the time skip. The time will be at 12 years old."
[Time skip function, activated in 3...2...1...0.]
I then feel my consciousness fade away and enter a deep sleep. Its function is simple, like its name, is skip time. But it's more like the primary ego, which is me, will sleep, and a duplicate ego takes my place and lives till I'm 12 years old.
I will still retain the memories when I wake up. Although I won't get any rewards, I can let the points I gain in those years upgrade my skills. But after my skills are upgraded to max level, I won't receive any extra points because it won't be fun.
After opening my eyes, I receive a large number of memories.
'So I'm 12 years old now. And I guess it's midnight. Let's go over my memories since I have time.'
I'm surprised that I became Yukino's friend. My plan works because I protected Yukino from the bullying and the sweets I made. It was on White Day, and I made delicious sweets with my max-level Cooking skill. Because of that, we became close to each other.
The Servants and Yae Miko also liked them, as they asked for a second serving. I don't know how White Day turns into an all-you-can-eat sweet party.
'Anyway, my relationship with the Servants is quite good as I can now kiss their cheek. I guess I took advantage of being a child to the fullest.'
I also upgraded and rebuilt my base in my M*necr*ft world. It turns into something similar to Chaldea in FGO. Now there are a lot of rooms, and that world's time flows at the same rate as this world's. A convenience function, I guess.
Being 12 years old, my parents decide to let me cook. Of course, after they see me cook safely and professionally, more importantly, the dishes are delicious. I cook for my dad, Mikan, me, and Yukino. I cook for Yukino because she pays for it, and I want to capture her stomach.
'It's successful. Nice job, me in the past.'
My relationship with Mikan is also good. She shows some slight signs of having a brother complex. I should push her toward me slowly and surely. Yae's also good, she follows me most of the time, and my head has become her favorite seat.
Because I become friends with Yukino, I'm familiar with the blond dude and her sister. I don't plan to add her sister to my target list, as I'm lazy to do anything. I'm now too lazy to do anything more. I guess I will train Mikan's cooking skills, and after that, I'll get her to do it in my stead so I can sleep more.
'Maybe I should have skipped time to when I'm 15 or 16 years old. Let's do it, then. System. Activate time skip, and the destination is when the series starts.'
My consciousness starts fading, and I wake up on my bed without Mikan beside me. I'm now 15, and Mikan is 11 years old, so we shouldn't sleep together. Anyway, there isn't much change, I'm still friends with Yukino, and the relationship with the Servants has some progress.
We kissed and did a 'mana transfer' on Christmas when I was 14. It was an incredible night. Anyway, I followed the initial events to capture the heart of the short blue hair girl. And I also erased the original pervert principal since I don't think he is needed.
And I also don't know when the series starts, so I travel to the time when I first enter high school. I then sign in for today's reward from the System. It's day 141st, as it only counts when the primary ego is active. The reward is disappointing, as usual. And maxing my skills is me bending the rule a little bit.
Anyway, it's midnight, so I continue sleeping while hugging Yae, the fluffy fox.
"Rito! Wake up! It's morning already! You will be late for school if you continue sleeping!"
"... Mikan? Let me sleep for five more minutes."
"Mou! Yae, can you wake Rito up for me?"
"Ou!"
As I'm sleeping peacefully, I feel something heavy on my head and bite my ear. It doesn't hurt very much, but it's tickled. And something is poking my nose. This is torture for someone who wants to sleep peacefully, so I surrender and get up from my bed.
"Ok-Okay, I'll wake up."
"Thanks for waking Rito up, Yae."
"Kiu!"
I yawn while going to the bathroom to wash up myself. After about 15 minutes, I go to the kitchen after dressing in my uniform. I then help Mikan with the cooking and making the bento. Mikan pouts while cooking.
"Mou! After Rito taught me how to cook, you dump most of the work on me and sleep most of the time."
"Haha. Well, I'm lazy, after all. How can I not take advantage of my sister when she could help me cook?"
"Hah. I hope you will wake up early more, you know."
"Depend on my mood, I guess?"
Mikan then kicks my leg softly. I then laugh at her action.
"Mou. I learn to cook because of you, baka."
Mikan murmurs gently, thinking I won't hear that. Sadly, I can listen to her complaint about me. And look like Mikan still has a brother complex. It's a good thing for me. After having breakfast, I ride my bicycle and take Mikan to her school.
After that, on the way to school, I see a familiar person. I slow down my bike and stop next to her.
"Yo! You're walking today, Yukino?"
"Oh, isn't this my friend, the lazy Rito?"
"Kou!"
"Oh. Hi, Yae. You still like sitting on his head, huh?"
"I still don't know how she can sit on my head without falling."
"Maybe because she's a fox?"
"Maybe. Oh! And here is your lunch box, my Ice Queen."
I can see her frown hearing her nickname. I can't help but start laughing at her reaction. And Yukino frowns even more. But she still takes the lunchbox.
"Tch. I want to kill the person who makes that nickname. I'm a human, have emotions, and can't shoot ice. So, how can they call me an Ice Queen?"
"Isn't it because your face is cold and you're beautiful? They made a fitting nickname for you."
"Then, how can you not have any nicknames? You're handsome and can do almost everything."
"Oh, thank you for your praise, my Ice Queen."
"Urg. Can you stop doing that, lazy Rito? You're grossing me out."
"Hahaha! Your reaction is still funny."
I then place my hand on her head and start stroking her. Yukino seems to be embarrassed and knocks my hand out of the way.
"Can you stop teasing me like a child?"
"How can I stop? Your reaction is cute."
"Hah. How did I become friends with this kind of person? You're lazy and flirty."
"Ah! How can you say that? I'm not that flirty. I'm not even good at talking to other girls. How can you put that label on me? I feel hurt, you know."
"You don't deny you're lazy, huh? Besides, can you stop acting? It feels gross and weird seeing a good-looking person acting crazy."
"Fine, then. Anyway, do you know if we'll be in the same class?"
Yukino then shakes her head.
"How can I know?"
"Well, I hope we'll be in the same class as you."
"Oh..."
"Because it's better to have someone you know in your class. I can sleep knowing my friend is looking out for me."
"You dumb, lazy Rito!"
Yukino then kicks my leg hard after hearing what I said.
"Hey! Don't act so violently! You're a girl, you know!"
"Hmph! How can I not after hearing that?"
"My bad, my bad. Still, I want to be in the same class as you. Because I like being with you, after all."
"... Hmph. Playboy."
"Want me to take you to school on my bike?"
"... Okay."
Yukino then sits on the seat and hugs me from behind. We got to school in silence as we didn't speak a single word to each other. Maybe, it's because Yukino's embarrassed with the situation. I can only smile at her reaction.
After arriving at school, I go and park my bike. And Yukino walks to the school's board to check which class we have been assigned this year. I don't need to worry much about it because this world originally is a harem anime, after all. And this body used to be its protagonist.
'I bet it's 100% being in the same class with Yukino and the blue hair girl.'
I then whistle while walking toward Yukino. I copy it from the new cat in boot movie on Earth. I think she hears it and turns to look at me with frightened eyes. Seeing me, she sighs in relief and massages her forehead.
"Lazy Rito, can you stop whistling that melody? It's creepy."
"Haha. No way. It sounds awesome."
"Hah. What should I do with this guy?"
"Anyway, are we in the same class?"
"Yes. Look like I'll be in your care again this year."
"Yeah, me too. I'll be in your care, Yukino."
"...Un."
I smile and pat her head. Yukino groans and pushes my hand away.
"I hate the fact you're taller than me. You always pat my head every time like I'm a child."
"A rebellious child, to be exact."
"Tch. I'll remember this lazy Rito."
"Sure, sure."
"I'm now tempted to punch your grinning face."
"Not a kiss?"
Yukino looks at me with gross eyes after hearing that.
"Did you finally become arrogant because of your handsome face? I'm disappointed in you."
"Wow, sharp tongue. But I'm confident in my face, you know?"
"Of course, you're the most handsome person I have ever known. So, I'll know immediately who to call the police when I see sad girls being disappointed or tricked. You're a toxic playboy to every girl in this school."
"Wow, I don't know if that is a compliment or a criticize."
"Of course, that is a compliment."
"Then, what about you, Yukino? Do you like me?"
"Hmph! You already figured it out long ago."
"Yes. But I'm still not sure to accept it. Because I don't think one person can satisfy me."
"Hmph! Playboy Rito. You should be glad that I'm still your friend even after you said that."
"Thank you, Yukino."
"Hmph. You don't need to thank me."
Yukino then murmurs in a small voice.
"Because I can't imagine loving someone other than you, after all."
"I see. I'll wait till you can accept my goal."
"... Playboy."
"Haha."
After having a small argument with Yukino, we go to our classroom and choose to sit in the last row. I sit near the window since it looks cool and can help me distract from the lesson. I look into the sky, wondering when aliens will invade this world.