Hero Time (Composite Ben 10 reader x Multiple Crossovers)

Red Dragon's Folly

Within the walls of the luxurious home of the Hyoudou household, the Princess of Destruction, Rias Gremory slowly opened her shining blue eyes. Sitting up right, she stretched her arms, yawning as she did so. Putting her arms down, she looked to her side to see her fiancé. But she did not see him. Only a crumpled pillow, and a messy sheet rested to her side.

A frown adorned her face, disappointed that she could not enjoy the morning with him. But no matter. She has the rest of the day to spend with him, and it's another day closer to their wedding. She then stepped out of the large king sized bed, not wearing anything at all as she headed to her closet.

With a fresh set of clothes on, she stepped out the bedroom and into the long hallway. Wandering the halls, she reminisced about the time her and Issei had known each other. It hadn't felt that long since she first laid eyes on Issei from the clubhouse window. Since she first met him, dying on the street after he unintentionally summoned her, bleeding out from a fatal wound given to him by a fallen angel.

Ever since she resurrected him as a devil, her life had never been the same. Many had understandably looked down on Issei and his lustful behavior. But Rias always found that quality somewhat amusing, even though she would sometimes find herself begrudgingly subjected to his sensual desires.

Despite his own wants and feelings, he always did what he believed was right, even if it meant sacrificing his dream to become a harem king. She still remembers when the fallen angel Kokabiel attacked. He had offered Issei a chance to make his harem king dream a reality if he sworn allegiance to him. He didn't even hesitate to refuse. Thought admittedly, he did sound rather reluctant.

After that, there was the time where the White Dragon Emperor, Vali threatened to kill her and her peerage. Of course Issei came to their rescue, fighting the Vanishing Dragon without a second thought. However, due to Vali's Divide ability, Issei had his power halved every few seconds, and was added to Vali's power. To counteract this, Issei broke a peice off the White Dragon's armor and merged it into his Sacred Gear, adding Vali's power to his own. The conflicting existences of the dragon's powers should've killed him. And yet, he survived at the cost of taking years off his immortal lifespan.

But the most memorable moment that held a place in Rias's heart, was when he arrived to her arranged wedding ceremony with Riser, and challenged him to a rating game. It was then where he revealed that he had scarified his arm to the dragon Ddraig in exchange the brief power boost to face him. After he won by the skin of his teeth, using holy water and a cross to gain the upper hand, him and Rias flew off into the Underworld's night sky on the back of a griffin.

There among the stars, they shared their first kiss, birthing the start of their beautiful relationship. Though after that, Issei pursued his dream of become a harem king, adding members of her own peerage to his harem, including herself. She had her jealous moments, but overall she didn't mind too much, as long as she got to spend time with him.

Then one day, out of the blue, Issei fell to one knee, and extemporaneously began rambling about forfeiting his harem fantasy, and asked her to marry him. Speechless from his sudden proposal, she dropped to her knees and kissed him passionately, as that was the only way for her to say "Yes".

The harem was disbanded, but they all remained close friends, supporting their engagement every step of the way. Everyone did their part preparing for the upcoming wedding, picking out dresses, and planning the bachelor party.

The thought of the their preparations excited the devil princess, forcing her to try and hold back her giddy chuckles.

Rias: Hehahaha!

But her quiet laughter was heard when Akeno came around the corner.

Akeno: Well, someone's in a good mood the morning.