Starting from zero: growing up with knowledge from another world

Prologue

  Standing on a large hill, or is this a small mountain? I look down at a vast cityscape full of buildings of various sizes, from small, square, and rectangular buildings to large buildings taller than anything I have ever seen and everything in between.

"Where is this place?"

My vision suddenly shifts, and now I am standing in the clouds under the vast blue sky that tinges to purple and then a starry night sky in the distance, no matter which direction I look. That's when I remembered, Ah... that's right. I died once and then reincarnated, but I gave up my personal memories in exchange for extra knowledge and two unique skills [Unlimited Potential] and [Perfect Memory]. I guess this means my brain has developed enough for my 'memories' to unlock. It was with that thought that I felt my body rushing backward, and then I woke up.

Let's make a mental list of key points:

-First, I died in a previous life and was reincarnated.

-Second, I chose to give up all personal for extra knowledge and two unique skills [Unlimited Potential] and [Perfect Memory] (Perfect Memory is not the same as eidetic memory as I can choose to not remember things and even organize my memory as I want, referencing other memories).

-Third, the knowledge from my past life will unlock as my brain develops to handle it.

-Fourth, my unique skills have been unlocked along with the knowledge from my past life.

-Fifth, my name is now Cero, I live in the town of Gale with my Elf mother Seraphine and my Human? Father Ronan (I'm using the [?] because I seem to have some small silver scales near my ankles), and I am around three years of age, I should be a half-elf.

-Sixth, in this world, people take their children at the age of five to a church or elder with the [Baptism] skill to get baptized and receive their skill(s) which they can then see in their mind by thinking 'Status'.

-Seventh, there is apparently an adventurer's guild in this world, and my parents used to be adventurers.

-Eighth, most of my knowledge of this world comes from my mom, who stays home to take care of me, while my father works as a trainer at the adventurer's guild. I will be able to learn more about this world when I am old enough to leave home on my own.

Now that I've listed it all out in my mind, that is a lot of key points. Oh well, I guess I will do some mild exercise until my mom comes to wake me up. For the next hour, I remained in my room doing stretches and light exercises that won't negatively affect my young body, it was a refreshing way to start the morning. Around the time I finished, my mom knocked and opened my door.

"Oh my, you're up early today. Did you have a bad dream?" Mom asked me while moving toward my bed to tidy it up. She has fair skin, silvery blonde hair, emerald green eyes, short pointy ears, and is fairly tall for a lady at around 5'8", probably. In my previous life, she would be a perfect 10. Though her ears would definitely seem strange in a world with only humans.

"I had a strange dream and couldn't get back to sleep. What's for breakfast?" I replied while sniffing to try to find out.

My mom giggled at my question before saying, "The usual, eggs, ham, soup, and bread. Wash up before you eat." The soup is necessary to soften the dense semi-hard bread that seems to be the most common, I'm sure they have something drier and harder to use as rations.

"Okay~" I replied while heading to the back room where a bucket of water and cloth to wipe myself is located. I guess it is a common trope in light novels for the MC to go on and on about wanting a bath, but I get it now, a bath or shower would feel a lot better, but it's not too bad with the body of a child. After wiping myself clean, I put on the clothes my mom had left for me and went to have breakfast.