Riser Phenex? DXD SI. Multicross?

Author: KAIOSHIN

A/N: To support me, pls donate and subscribe,

Paypal: bit.ly/kaioshinpaypal

Patreon: patreon.com/KAIOSHIN

YouTube channel: Kaioshin Theories and Analysis.

youtube.com/@kaioshintheoriesandanalysi7427

______________________________________________

It had been 3 years since Riser had transmigrated into his new body. And just as he appeared 1 day after his Presentation to the underworld, as the third son of the Phenex house at a party. Today, he would be going to the Gremory house. For the third anniversary of Rias Gremory the youngest Heiress of the Gremory House.

In these 3 years, his mother once again got pregnant, apparently, she felt she was losing Riser, and so in order not to feel this emptiness, she wanted another child. In this case Ravel, with 6 years difference between her and her Brother.

Riser could not leave the castle much, but he did not stay still. Riser could not stand to wait 4 years to train and started training a few days after he arrived. Even today at his 6 year old birthday Riser was stronger than an adult man. That stuck a lot in perspective. That when he was a teenager, he would most likely be able to take a rifle shot and simply ignore it. He wondered if the strongest monsters could ignore a nuclear explosion?

[Roy Mustang - 100%]

With the knowledge he acquired from alchemy, through the gate of truth as well as his own advances and research. He knew he could make a philosopher's stone if he wanted to. But what would he use alchemy for that? Right? He could make a sword from the floor, but that wasn't really what he wanted, not even fire alchemy. If you compare your demonic or sacred fire magic, it would be weaker. So Riser decided to use his alchemy for something that would make sense.

His future evil pieces. It was rare for people to get mutant pieces, but with the structural analysis spell, along with his Archmage ability he could analyze the entire piece and even know how to make an evil piece. Just as he could find out how an evil piece undergoes a mutation.

Using part of alchemy like transmutation to make the piece become a mutant.

[Sabô - 60%]

[ACE - 52%]

As the two basically have approximately the same strength the progress was constant in each one. Riser was able to awaken in these years his basic forms of Haki, being able to predict movements and see without seeing using Observation Haki. As harden your skin, darkening it in black with Armament Haki. With Ace's Template, and using his Blank Essence and Archmage abilities, to get the Conqueror's Haki. After all, he already had this in his Template.

[Feitan Portor - 83%]

I had to Buy a Sword that suited me, to finally progress in this Template. Although I could not progress further because his main ability was a little "destructive". But I could really make progress if I could train more. But I just let Tsunade know my progress. Tsunade and I made a deal for her to help me hide my training. For her it would be a salvation after all, she could be sent away. Although initially she was very insistent on not letting me train. So I punished her harshly during my sucking sessions.

I used the Orgasm seal, preventing her from achieving her orgasms. I used sexual magic that I had thanks to Lucifer's knowledge, and with Lucifer's ability to find out all her erogenous areas, where I massaged and used magic to be more sensitive and be more intense. I did this punishment for 3 months. I left the seal even when she would go home preventing her from being able to relieve herself at home, I exaggerated, she almost broke. On the day I removed the seal, she was crying and pleading for her release. Instead of a good feeling of conquering a beautiful woman. All I felt was that my stomach was cold.

After that Tsunade started sleeping with me in my room. As I said this before. I definitely exaggerated. She was a kind and gentle woman with everyone including her brother. The simple fact that she abandoned her brother means she didn't get well, mentally. I had to postpone part of my training and sessions with her to meet the boy. He was 12 at the time. Which made me feel even worse.

This put me in perspective that I was simply playing with other people's lives without caring. As a demon this was completely normal. After all, the method of forced acquisition was very conventional in devil society. What else was there were forced marriages or subjugation of one family over another.

Why did so many pureblooded devil families appear dead or extinct? When in fact, because devils were hostile to each other, conquering each other's land. It was simple many men of the noble families simply died inopportunely leaving their daughters or wives to take over. Soon a miraculous marriage would appear putting the nearly extinct house on the brink.

It was very logical, the family in question taking all their things and fleeing. I decided from now on, not to use this on people close to me. But I won't be naive not to use an ability, if necessary to break some out there.

I also helped Tsunade return to her home. I have to thank her for teaching me everything about medical ninjutsu, along with her senjutsu. I was able to use it on her as well as in Naruto's original story, in which she can partially heal Kakashi's mental trauma. The improvement in her was gradual but constant. What made me feel even worse was that Nawaki was barely eating and had dark circles under his eyes. Probably from worrying about his sister. All they had was each other.

Sighing mentally.

I decided, then, to add her to my peerage (Harem). Many would see it as stupidity, after all she is already her employee, but with the evil piece, she could jump to low Satan class. I was just wondering whether to give her a mutant Rook or mutant Bishop. I could use the Ritual of (Lucifer, Helel) for both her and her Brother, to grant immunity to holy energy. She was a solid in the final class. During this time she did not stop her training, so she progressed in fits and starts.

[Lucifer MorningStar - 6%]

It was to be expected. After all he was very powerful even with all his abilities being greatly nerfed. With this Template at 100% he could most likely face the EXEs head on. Of course it would have to be 1 on 1. But it would still be possible to defeat them. It's not like two gods are going to show up at the same time to fight me, right?

Now the items I got in these 36 months? Only one incredible thing happened. And two others not so much. After all they were on my birthday.

[Summonable Character - "Nelliel Tu Odelschwanck" - Bleach]

[Bazz-B – Bleach]

[Endeavor – My Hero Academia]

Now I really know she would be a great Rook. Especially in her Centaur form. Now I just hope she's her adult form. Not the little girl, that would be very problematic. Whom are we kidding here. I think I'm screwed now. I just hope she can control her forms.

Bazz-B seemed like he would be a strong character, but he turned out to be quite weak. Being only able to deal with a Captain without his Bankai. After that he had part of his power stolen by his King, so a very pathetic defeat.

Endeavor is kind of useless, given all the constitution I got, plus my power along with the Mera Mera no Mi, kind of makes all this useless. Since I can do everything without the need for him. Very likely I will get the very high status. Luckily they weren't the only things I got.

[Erina Nakiri – Food Wars] (Aperture Science Handheld Portal Device - Portal)

[Batman – Dc Comics new 52] ($1'250'000 Dollars)

[Tony Stark - Marvel] (Demon Sword Lostvayne – Seven Deadly Sins)

[Sage - Marvel] (Zero Point Energy Field Manipulator – Half Life 2)

[Aang - Avatar] (Sukuna's Fingers (Jujutsu Kaisen))

[Guts - Berserker] (Death Note (Death Note)) (Only works on Mortal beings)

[Holy Grail (Empty)] (A single Dragon Ball (Dragon Ball))

[Jeweled Sword Zelretch] (Kaleidostick Ruby and Sapphire)

[Demon Armor Teigu: Incursio] (Apple of Eden Assassin's Creed)

The Rest was Salt or more of the Black Keys. Which filled me with sadness after all he imagined that every time he would get some relevant item. It seems it was not quite like that. Riser Supposed that if he changed the timeline he would get a better item. All he could do was test.

Now his Templates in Use are:

[Templates]

[Batman – Dc Comics New 52 - 87%]

[Sabô – 60%]

[ACE – 52%]

[Lucifer MorningStar! - 6%]

[Feitan Portor - 83%]

[Inventory]

[$1,750,000 Dollars, Aperture Science Handheld Portal Device - Portal, Demon Sword Lostvayne - Seven Deadly Sins, Zero Point Energy Field Manipulator - Half Life 2, Sukuna's Fingers (Jujutsu Kaisen), A single Dragon Ball (Dragon Ball), Jeweled Sword Zelretch, Kaleidostick Ruby and Sapphire]

**

[Boost!]

**

(A/N: Well. There is the reason why Tsunade was added to the story. Basically a very kind character, given her background as a doctor, and wanting to help her Brother. In the end she ends up being abused. This will also serve to see that devil society is different from human society and that he himself is no longer human anymore. That is, a character development. He will still be very selfish and will take measures like this going forward. But it will always be for the "good" of his family.)