Reborn: Ulquiorra In DxD World

"I was hoping to eliminate both Sirzechs and Odin using Loki" A man with a long brown hair covering his right eye said. The man was dressed in black armor with a cape. He was sitting in a chair and he supported his chin with the back of his palm. He said while smirking, "But it seems a heathen god can only go so far. But he is one of the main gods of the Norse."

"I find it hard to believe that he was sealed away without any resistance."

Sona and her peerage bid their farewell before they go back to human world as they already finish their vacation here in the underworld. The summer break was over and they needed to attend the school.

"Uwaa!! So-tan I will miss you!!" Serafall cried as she hugged Sona. It looks like she wasn't going let Sona go.

"O-Onee-sama! Stop this at once," Sona was blushing as she tried to escape from her sister.

"Ulquiorra, I'll leave So-tan to you" Serafall hugged her tighter than before.

Ulquiorra nodded in response to Serafall.

After a few more minutes Serafall finally let go Sona. But her looks was telling them that she didn't want to let Sona go. In that time Sona quickly prepare their things they will bring in the human world.

The train arrived at the Sitri territory. Sona and the rest quickly entered the train leaving Serafall who was shouting her and Ulquiorra's name. After they enter the train and the rest of them immediately settle themselves inside.

This train was the public transportation that went to human world and underworld. Many devils prefer to use the train than to use teleportation magic. Not all devil know how to use teleportation, especially if it's from human world to underworld. Only a few high ranking devil could use a high rank teleportation magic.

...

A week had passed in an instant. Sona and the rest of student council was busy as they currently managing the items, equipment, or the schedule for the sports festival. Odin went back to human world after his tour around the town leaving Rossweisse in Kuoh town. Rossweisse was crying nonstop until Rias came and offer her to become a teacher at the academy. She was also reincarnated as devil in Rias peerage as her rook.

Shido Irina also transferred to Kuoh academy. Issei, Xenovia, and the rest were surprised when they saw her. Azazel explained to them that Michael sent her here as Angels' representative. She explained to them about the brave saint or reincarnated angel. Brave Saint are set of 13 cards(including the king) used by the angels to increase their ranks by reincarnating other beings into angel. The Brave Saint are based on the Evil Pieces system used by the Devils. The Twelve saint are based on the 12 apostle of christian. The Angels use cards while the devils use chess piece. Irina is Michael's Ace.

Ulquiorra was on top of the school looking down at the students. A blue magic circle appear behind him and a man with a silver hair walked out of it.

Vali stood beside him and said, "They are going to attack the Underworld."

Ulquiorra cast a glance at him before he looked at the students once again. He didn't reply at him.

"Well, I'll go back now, I've already said what I want to say, and don't forget what you've said to me." Vali said as he turned around and enter the magic circle. He completely disappear in the academy grounds.

The rating game between the pure blooded devils will start. This event should have happened in summer vacation. Unfortunately there's an incident about Loki and the rating game was postponed. The bracket was released and they already know their first opponent. Rias' team opponent is Diodora Astaroth, of the Astaroth family. Diodora is the little brother of the current Satan, Ajuka Beelzebub. While Sona's team opponent is Seekvaira Agares in the upcoming match.

...

Rias, Issei and the rest went back to the underworld as they were going to fight their first opponent, Diodora Astaroth. Diodora already reveal his strong d.e.s.i.r.e to take Asia. He declared that he will defeat Issei in rating game and take Asia.

They were taking the position as the rating game was about to begin. Rias and the rest already have a plan to deal with Diodora. They only need to stick with their plan but something was bugging her. She feels that something is wrong but she couldn't find what it is.

Ulquiorra decided to watched their fight.

"Hmm? I didn't think that you're interested in this fight" Azazel walked beside him.

"I just want to confirm something" Ulquiorra said.

"Oh? Care to tell me what it is.. " Azazel laughed and said.

Ulquiorra didn't answer him. He just looked at the large screen.

Suddenly a series of explosion echoed outside. The whole building shook that it caught the other devils off guard as they fell on the ground. The explosion outside didn't stop and Azazel decided to check it.