Endless Plunder in High School DxD

As the days went by, the world was changing.

In the year after Tenraku graduated, Hyoudou Issei, Motohama, and Matsuda also graduated. 

After several years of study, the three of them had made some progress in their Oppai Magic. They joined a company together as ordinary employees, but secretly began their Hero careers, vowing to use their Oppai to protect humanity and the world.

That same year, many girls from the Kendo Club, such as Kiryuu Aika, Murayama, and Katase, also graduated. 

The Sword Princess Guard was officially established, with Kiryuu Aika appointed as the group leader and Murayama and Katase as deputy group leaders. 

After undergoing special training, the Sword Princess Guard, as Tenraku's exclusive protectors, began to attend various formal diplomatic occasions.

The following year, Ravel, Koneko-chan, Kunou, Elmen, and Le Fay also graduated from the university. By this time, the girls had grown into stunning beauties. 

Although they had countless suitors at school, they had all been thoroughly "devoured" by Tenraku.

After graduating, Koneko-chan and her elder sister Kuroka followed Tenraku as his secretaries, handling some of his affairs. 

Ravel, on the other hand, along with her Peerage members Kunou, Elmen, and Le Fay, officially participated in Rating Games, intending to hone their skills and bring honor to themselves and their families.

At this point, the Rating Game had undergone some changes. 

Initially, when Emperor Belial exposed the truth behind the darkness of the Rating Game, the underworld's population was disappointed, and the centuries-old competition, deeply ingrained in devil culture and values, was on the verge of decline. 

However, thanks to a series of reforms and rescue measures, the underworld managed to keep the competition going.

Now, the Rating Game was no longer just an underworld competition, but an international competition open to all major powers and races. Independent oversight committees, composed of representatives from major powers, ensured fairness and integrity in the competition, eliminating all forms of cheating.

With the lure of rewards and honor for themselves and their families, many major powers and races participated in the Rating Game, making the competition fierce. 

The Rating Game has become the most popular and highly anticipated international event in the world.

Over the years spent by Tenraku's side, the girls had grown and developed significantly. Ravel and Kunou had mastered the powers of their respective Bloodline legacies, reaching levels close to that of Demon King. 

Le Fay had grown into an excellent and powerful magician, while Elmen had reached the level of a Comparable Top-Class Devil. If she drank Tenraku's blood, she could temporarily possess the power of a transcender!

In their first Rating Game competition, Elmen drank Tenraku's blood, shocking everyone with her transcendent power, and effortlessly defeating her opponents. 

As a result, the Rating Game Committee specifically imposed a rule for Elmen. While she wasn't restricted from using her abilities in the game, she was strictly prohibited from drinking Tenraku's blood in future competitions.

As the invincible king at the top of the world, Tenraku's blood was simply the most potent cheating tool for Elmen. If she continued like this, no one else would stand a chance.

Despite this restriction, under Ravel's leadership, the girls continued to win consecutive victories. They quickly distinguished themselves in the Rating Game and rose to the ranks of top players. 

Ravel, in particular, was hailed as a rising star and a new-generation Devil, shining brightly in the Rating Game, bringing countless honors to herself and the Phenex family.

During this period, Tenraku was relatively relaxed, and Tiamat proposed that Tenraku and Ddraig fulfill their initial promise to help her retrieve her lost treasures. Since it was something Tenraku had promised to do, he naturally wouldn't break his word. 

Thus, Tenraku, Tiamat, Ddraig, and Albion embarked on a journey to recover Tiamat's treasure.

Many things happened during their quest, but it's worth mentioning that Tenraku managed to seduce all three mother Berserker Dragons he encountered along the way. 

However, when Rias and the others found out, they weren't surprised. After all, how many women had Tenraku seduced by now? It was impressive that he had restrained himself for this long before making a move on Tiamat and her companions.

In the end, seducing the Berserker Dragons didn't have any significant impact other than enriching Tenraku's harem.

As time passed, another four years flew by...

It had been a whole decade since the calamity caused by the Sovereign Beast 666 - Trihexa, and according to the announcements made by Demon King Ajuka and Demon King Falbium, the Underworld officially implemented the Seven Demon King system.

Demon Kings Beelzebub, Asmodeus, and Leviathan remained unchanged, still held by Ajuka, Falbium, and Katerea, respectively. 

Serafall stepped down from her position as Demon King, and the title of Demon King Sitri was inherited by her younger sister, Sona Sitri. 

At the same time, Vali, Sairaorg, and Rias, who had gained high prestige in the Underworld, respectively assumed the roles of Demon King Lucifer, Demon King Bael, and Demon King Gremory.

With this, the entire Underworld entered a new era under the Seven Demon Kings!

In the same year, Tenraku held a wedding with Rias and her companions in Heaven. Almost all the world's important leaders personally attended the ceremony to offer their blessings.

It was an unprecedented grand wedding, with billions of believers from the Saints and Demons Religion, tens of thousands of girls from the Sword Princess Guard, and the exclusive maid corps, dressed in white or black wedding dresses, serving as bridesmaids. 

The scene was nothing short of epic and deeply moved the hearts of everyone present or watching the live broadcast!

Thousands of angelic girls scattered flower petals from the sky. Then, accompanied by all the bridesmaids, Rias and her companions, dressed in exquisite wedding dresses, walked slowly down the red carpet toward Tenraku.

Even Tenraku was enchanted by the sight of the girls at that moment.

Finally, under Azazel's guidance, Tenraku and the girls exchanged kisses, uttered vows of eternal loyalty, and officially completed the wedding.

From then on, Rias and her companions were Tenraku's true wives and the holy concubines of the entire Saints and Demons Religion!

The celebration of the wedding lasted for over a month, and this unprecedented grand wedding was recorded in history books. Even after thousands of years, it would still be admired by countless romantic souls.

After the wedding, Tenraku and the girls began a happy and fulfilling life together, though in truth, they had been living such a life for quite some time.

At this point, Tenraku and the girls no longer lived with the Kamiya Family in Kuoh Town but resided in the temple atop the Seventh Heaven in Heaven. During the day, everyone was busy with their respective work, but they would reunite in the temple every evening. 

Although Rias and Sona became Demon Kings and became busier, as long as there were no urgent matters, the girls would always come back.

Although work was important, for Tenraku and the girls, family always came first.

...