Riser Phenex? DXD SI. Multicross?

Author: KAIOSHIN

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I was working with my clones after deciding to cheat again and absorb the power of Tsunade and Nelliel. Thanks to that, I managed to break through my Ultimate class and reach the Maximum class, or, so to speak, Satan. In my angelic forms now, I have 6 wings.

The ability of the shadow clones was one of the gifts of a researcher. Being a Phenex in the Satan class that can destroy cities, if not a country/countries, I could easily maintain 100 clones, although initially, I made 25 and gradually dissipated them. Until it reached 100.

So I started working on their projects, creating a power source. Unlike Tony Stark, who made a small one, I would have to make one to power the entire Phenex territory. But first, I would obviously do it through Palladium. Yes, it was poisonous and harmful to a human. But the alchemical transmutation he planned to do automatically could solve much of this problem.

You might be wondering why transmuting using alchemy was useless. The problem is simple; in this world, there is magic, an element that did not exist in FMAB. I could basically do it like "Father" and bypass the alchemy step, using his demonic/holy/divine energy. (Kratos?). So, basically, I could synthesize Palladium, but not only that, I could make a miniature sun in my hand. (A/N: Imagine him building an Arc Reactor like the one Howard had in Stark Industries, only as he did for the miniaturized version, he scaled it up several times. But he didn't just make one. After all, he wouldn't be satisfied with one, so he made ten to supply the region. Later, he'll do it with Badassium because he doesn't have the knowledge of Iron Man's template yet. He'll make updates later.)

Over time, both Tsunade and Nelliel managed to gain this advantage as well, meaning they also became capable of changing their race. I gave my evil pieces the ability to do this. Normally, when someone is reincarnated, they receive some characteristics related to the clan they are reincarnating into. (A/N: Michael having another headache.)

For example, if you reincarnate into the Gremory clan, you would gain better control over demonic energy reserves, and you might gain a Gremory characteristic like their charm. Just as it would happen with Yuuto Kiba.

In the case of the Phenex, you would gain better control over fire and wind-related magic. But Riser wanted more than that. So he learned through himself how he could survive being a hybrid of all the Angel/Fallen Angel/Devil races. Giving him the ability to use the energies of these races as well as being immune to them.

"Riser-Sama!"

"Yes, Tsuna. Is there something you'd like to talk about?"

"The transfer between the Vampires has been completed. They, in the end, wanted to increase the price; in the end, it came out to 1.75 Liters. But, we have a problem. Gasper Vladi's Sacred Gear is out of control, and Lady Valerie Tepes is already waiting in a room for you."

"Very well! I'm going to them." I told her and left a clone in my place while working to understand energies.

"Store all the data sampled, Goetia."

"Understood. Sir. Should I execute any protocol?"

"No, just wait for my return." I finish saying and stand up to go along with my maid. (A/N: Protocols come as guidelines; after all, he is Batman. Even though he doesn't have Batman's emotional burden. The desire to be ready for everything still hits hard.)

Leaving his facility, you could see several Bots? Yes, several Iron Man suits, from MK1 to MK25, with a magic circle appearing under Tsunade and Riser. Teleporting them away, where his room was.

"Show me the way to Valerie first." I affirm to Tsunade, who was pondering where to take me first. She nods her head and heads to the Dhampir's location.

**

We didn't walk much, close to my quarters and Nelliel's, as well as a place where Tsunade can stay if she wants. A room next door. Tsunade knocks, and then we enter. Although I can hear some whispers nearby.

There I see a wide-eyed girl, barefoot, trembling, and wearing only a long white common dress. Her skeletons, or rather bones, show through her skin. With a look at her, I think she's 6 years old. But she could be older, after all, she must be kept starving. Given only small portions of food (blood) so that she doesn't die. This has caused both physical and magical atrophy. It's not surprising that she hasn't awakened her Sacred Gear yet. But with the trauma she's going through, it shouldn't take long.

I don't start the conversation at first because I was staring at her for a while. Making the girl take small involuntary steps back. And I start the conversation with her. (A/N: He wasn't doing it on purpose, just evaluating her.)

"I'm Riser. A noble Devil from the Phenex devilish house. Of the 72 devil's pillars. Although currently, there are only 32. I asked my maid to notify my father that I was interested in you two, Dhampir. One is you, the other was Gasper Vladi. I'm interested in reincarnating you into my nobility."

"Although your family did a lot to keep her hidden, I found out about you, so I made a negotiation that for them was invaluable. I will be honest with you. With the information I had, they impregnated your mothers just so they could have a Sacred Gear. In Gasper's case, he has no control over his Sacred Gear. And he may end up turning into a bubble of darkness and cursing everyone. Your case, you still haven't awakened, given no magical training, and the low amount of food you've had."

"I will reincarnate you as my pawn. I hope that with this energy leap, it can mitigate the damage you have been in the dungeon. So, you'll have a new home, where you can truly live and live outside of a box. Make friends, have fun, and even get stronger." I speak directly to the girl who visibly shrinks when talking about her past and her mother. After all, after giving birth, feeding was necessary. Nothing better than fresh blood.

After some time processing, she speaks. Starting hoarse, sounding like she doesn't talk much.

"C-Can I play outside?"

"Yes, but you'll have someone monitoring you to ensure your safety."

"C-Can I have f-friends?"

"Yes. Everyone should have friends and not live in just one room."

"Can I eat and not go hungry?"

"Yes. You will eat well from now on." I say to her gently, seeing that with each question the girl had started to burst into tears. She falls and wraps her hands around her knees in a practiced way. Almost as if she was used to crying like that. Silent tears stream down her face.

I walk over to her and start stroking her head, using my magic to try to calm her down and make her feel comfortable. Soon, she throws herself into my chest and squeezes me tight and starts crying openly.

"Aaaah, W-Why? Aaaah, Why? Aaaah,"

"It's okay now. No one can hurt you like before."

Sniff* Sniff* Sniff*

["Many people imagine that this world is just Boobs. Although it has its perverted side. It's a terrible place for the weak."] I think while spending a few minutes calming the girl who was literally sold as a slave.

(A/N: This is what gives him the ability to know what the person desires most. He can understand the person's dreams, desires, and insecurities.)

Exposure of Desire