Riser Phenex? DXD SI. Multicross?

Author: KAIOSHIN

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Tsunade, returning to the room with a stack of books in her hands, immediately noticed the different aura surrounding Riser. However, she decided to temporarily ignore this uncomfortable feeling and focus on presenting the books to the young master.

"Riser-Sama, here are the books you requested," Tsunade made a small bow while handing over the books.

Riser, still maintaining his innocent smile, took the books and began flipping through them. He had a curious look as he examined the pages, absorbing information about Yokais and different forms of magic.

"Interesting... very interesting," Riser murmured to himself as he read.

Meanwhile, Tsunade, still concerned about the change in energy in Riser, tried to find a subtle way to address the issue.

"Regarding your earlier question, Riser-Sama, it's important to be cautious when using certain types of energy. Sometimes, some energies may not harmonize well with your being," Tsunade carefully chose her words, trying not to reveal too much.

Riser looked at her with a mischievous gleam in his eyes. "Ah, Tsunade, are you worried about me? How lovely of you." He winked at her, intensifying the strange sensation she felt.

"I'm just thinking about your well-being, Riser-Sama. Certain energies can bring unexpected consequences," Tsunade tried to express her concern in a generic way.

Riser, seizing the opportunity, decided to play around a bit. "Well, Tsunade, I trust you to guide me and ensure I don't do anything... dangerous. After all, you are my personal maid and take such good care of me."

Tsunade sighed internally, realizing that Riser was teasing her. "Yes, Riser-Sama, I will do my best to ensure you're safe," she replied, resigned.

Meanwhile, Riser continued reading the books, absorbing knowledge about the demonic world, Yokais, and various forms of magic. He was determined to become more powerful, making the most of the abilities granted by the Archmage Essence.

The atmosphere in the room remained charged with Riser's peculiar energy. Tsunade knew she would have to deal with the consequences of his actions, and her gaze fixed on the young master, trying to understand what was behind that childish smile.

Meanwhile, time passed at the Phenex mansion, each character playing their role in this intricate game of power and magic, where secrets and mysteries intertwined. Riser's journey was just beginning, and destiny awaited in the shadows, observing every move of the young master.

**

[2 months later]

It had been 60 days since I arrived in this world, I started studying in my room, always asking Tsunade to bring me the books. I began learning everything about the characters. I started with Roy Mustang and tried to read books related to alchemy, along with studying related to the military. The first thing I did was learn how to cast the structural analysis spell known as Projection Magecraft.

This spell has a part beyond projection, which is the analysis of the structure. Knowing how it was made and what and how it was made. With my Archmage Essence, I could deduce a way to use it in a book to read the information it contained.

["You wonder, why not read the book? In a way, using the spell, I could read everything in it. Almost instantly. So it was worth it. This allowed much of the Alchemy knowledge in the Phenex library to be stored in my head."] Riser thought, looking at the current percentage.

[Roy Mustang – 60%]

["Well, I couldn't get more because, despite being a supernatural child, I'm still almost a baby. Three years old. So I don't have the strength of an adult. Probably. When I'm 5 or 6, I should have the strength of a human adult man. That's the comparison between an untrained devil and a human."] Riser thought analytically.

["Overall, all I did was fill in the information I didn't know about them. Alchemy is the ancient metaphysical science/mystical art of manipulating and altering matter using natural energy. This act is known as 'Transmutation,' and its sequence is generally described as: Comprehension - Understanding the structure and inherent properties of the atomic or molecular composition of a specific material to be transmuted, including the flow and balance of internal potential and kinetic energy. Deconstruction - Using energy to break the physical structure of the identified material into a more malleable state, easily reshaped into a new form. Reconstruction – Continue the flow of energy to reform the material into a new form."] Riser thought.

["I believe I should use it in practice. To advance my Templates."] Riser continued.

[Sabô – 17%]

["This one progressed even less. Besides understanding and using Busoshoku Haki and Kenbunshoku Haki. All I could do was understand this power through will. In other words. Now I possessed Haki in my Archmage core."] Riser thought happily.

["My mother ended up finding out that I can dematerialize into fire. During one of her suffocations through her breasts. I turned into flames when brutally crushed in those breasts. Like all of us Phenex, we are immune to fire. Of course, not to the fire from, for example, a Dragon like Vritra. With its fires damaging the soul."] Riser was analyzing his powers.

["I was considered a genius. Only Sirzechs Lucifer had his form as the representation of his power. Although in my case, all thanks to Mera Mera no Mi. And somehow, everything about how I can turn and manifest in flames leaked into the underworld. Maybe it was my brother's or my father's marketing. If this wasn't the case, then we have spies in the castle. In a way, this is good. It is true that the Archmage gives genius intellect."] Riser thought.

[Lucifer MorningStar – 3 %]

["As for Helel. I just started evolving the perverted power of my Template. Still taking advantage of Riser being a crybaby. Who wouldn't let go of his mother. I used it freely to take advantage of my personal maid. Although recently, I use transformation to change race. In other words, I haven't used the power to create a light spear yet. Unfortunately, my maid after what I did to her. She won't leave me alone."] Riser was a bit tired of it.

["After creating sacred energy, corrupted sacred energy, and senjutsu. This made her extremely worried about what I can do. Which is true, in this case. After all, I'm only 3 years old. Everyone would expect me to be a fool."] Riser thought.

["And during these months of study, I noted everything I could about what I knew about the future. As well as powers and important characters from DXD. I wrote down all the power from alternative universes like Bleach or even Dragon Ball, after all, with the power of the Archmage, I can have all these types of energies at the right time."] Riser thought about it.

What did I win in these two months in monthly draws?

[Feitan Portor – Hunter x Hunter, Black Keys.]

In the second month:

[ACE – One Piece, $500,000 – Five Hundred Thousand Dollars]

**

["In 1 month, I used the Feitan Portor Template. To acquire NEN as another energy in my Archmage core. Unfortunately, I couldn't do the training like Killua or Gon did in their anime. Fortunately, this was one of the things I noted. Although now that I realize it. The Archmage's ability gave me the ability to not forget anything. Which could be a bad thing too. Like a Phenex, we can be brutally tortured and still regenerate. What could break the mind of a Phenex, or in my case, I would remember all the pain I went through."] Riser thought.