Riser Phenex? DXD SI. Multicross?

Author: KAIOSHIN

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Riser had to think about his own way of becoming stronger. Knowing that he could become stronger but couldn't use magic, he decided to utilize the passive abilities of the essence.

The Archmage's Essence gives me the ability to learn any 'magic,' even unique ones, by seeing them once or understanding enough about them. This includes things like Ki, Chakra, soul power, etc.

So, even if I don't train now and just read books, I can learn about magic by asking my lovely maid. Displaying all these powers, he would simply absorb them all. This also applies to asking his parents and siblings to show all their moves and copying them as well. He basically has the Sharingan for the magical realm, but in essence.

At this moment, Riser was being carried in the arms of his personal maid. It didn't take much longer for both of them to reach his room. He still took advantage and was nestled at the curve of her neck. Every time he breathed and felt the sweet aroma of the beautiful lady, she shivered.

"s soon as they entered the room and she placed him in the chair, she just stood there, looking at him. She then asked, "What would you like to do, Riser-Sama?" Bending down to the little boy. It was only now that Riser realized he hadn't asked her for anything. He just kept looking at her.

"Why don't you explain everything about your powers to me? After all, if you're my maid, I suppose you should know what you can do. If possible, demonstrate some of your abilities that aren't too destructive, of course," Riser began speaking, and then quickly ended with a clear excitement in his eyes, contradicting his age.

Riser wanted to use another part of his Archmage's Essence abilities. The parts he would mainly use in these moments were the genius analysis ability to understand any magic and the ability to create energies beyond the standard in his body, which was demonic energy.

"Well, my powers come from my Yokai abilities. Rabbit Yokai are anthropomorphic beings that look like rabbits. They have rabbit noses, rabbit ears, cotton tails, and can transform to have large rabbit feet as well as somewhat large rabbit hands. Some may have whiskers."

"Yokais originate from Asia, Japan, and China, considered demons and monsters as mentioned in various legends. Yokais have enhanced physical abilities compared to normal humans. All Yokais can manipulate their own Youki, in the form of Youjutsu, giving them a wider range of different abilities beyond what they inherited. Among some Yokais, they can learn to transform into their animal forms."

"As Yokais, my Youjutsu is focused on the water and earth elements. It also gives me amazing healing ability, being able to heal others and myself, regenerating. Along with my Senjutsu ability, giving me super strength and enhancing my Youjutsu. Unfortunately, I'm not a sage, so I can't use Wood, the combination of water, earth, and chakra ninjutsu in a sage-like manner. Unfortunately, the last sage in my clan was my grandfather," Tsunade finished explaining, revealing all her powers.

She raised her hand, and then the air's water began to dance in her hand as if it were simply dancing as Tsunade wished. Tsunade made a small cut on both hands, causing one to almost instantly close. The other, with green energy in her hand, closed the wound.

"The first is the combination of my Senjutsu and Youjutsu, giving me the ability to manipulate water at my will. The other is the seal I made, using Fuinjutsu techniques to heal myself. And the other is a healing ninjutsu."

Approaching the bed with just one hand, she lifted the bed as if it were nothing.

"My super strength allows me to destroy an entire fortress with one punch," Tsunade continued speaking.

"And my other abilities are unfortunately too destructive for this room," Tsunade finished speaking, and throughout the time she demonstrated and manipulated her Senjutsu, Riser was copying her abilities through the Archmage's Essence. Tsunade only realized that Riser was a conduit for Senjutsu energy after his demonstration.

Riser observed and learned, instantly in his Archmage's core that had demonic energy, now he also had Senjutsu to use. Tsunade only shivered thinking that if he didn't learn to use the energy, he would become angry. But somehow, this energy was much purer than the usual Senjutsu used. (A/N: Well, the essence allows him to create the energy within him, so it will be much cleaner than the energy in the external world.)

"R-Riser-Sama, h-how did you learn Senjutsu? You know what, maybe it's better not to tell me. Just don't use your power, respecting your father's wishes," Tsunade said surprised to feel the boy's energy.

"Besides that, being a half-demon, I can also use demonic energy for magic. But I usually don't use it in combat, only for teleportation circles," Tsunade finished speaking.

"Very well. Later, show me your other abilities in a place where we can be destructive. Bring me some books about your people, as well as magic related to Yokais," Riser said, asking her to fetch the books.

"With your permission," bowing. Tsunade, after bowing, turned and left to select some books. Riser knew that now was the time for him to do a test.

Quickly, Riser jumped from the chair he was in and went to a mirror.

Riser spread his wings. A pair of demonic wings emerged from his back. Riser quickly used the [Race Change] ability, and then the two demonic wings became a pair of fallen angel wings. Wings as black as darkness.

And in his magical core, which was now able to generate corrupted holy energy, was analyzed by the Archmage, and the corrupted holy energy was once again created in his Archmage's essence.

With a smile on his lips, without wasting time, Riser quickly changed to his angel form. A pair of white wings with a halo formed. With his Archmage, Riser was able to generate holy energy.

Riser quickly changed back to a demon and then ran to sit in the chair. With great difficulty due to his size. Riser was able to sit in the chair. And he used his acting ability to appear very innocent and gentle.

Not taking long, Tsunade returned to the room. And with her sensory abilities that she hadn't mentioned to Riser but was intrinsic to her race, she couldn't help but have a headache. She could feel Riser's energies, and now he was for some reason full of holy energy. If Riser's parents found out, she was screwed. She could only think of persuading her master not to use this power. ["Maybe my breasts should be enough."] she thought in her mind.