Raijin was attending a party in celebration of his success over beating the 666, or Trihexa Army with the use of his Full Dragon God Mode powers.
Given how overly powerful he is, it was a cinch to defeat them, allowing him to enjoy the night of celebration that was specifically planned for him.
As the lights shined brightly, music playing loudly, and chatter emanating throughout the room, the night went on everyone in attendance seemed to be enjoying themselves.
For instance, Gabriel was seen dancing with her beautiful priestess outfit, as many others such as Akeno wearing slightly revealing dresses that didn't bother hiding cleavage.
However, this wasn't the case for Raijin. Despite the fact that the party was revolving around him, it didn't take that long of a glance around the room to quickly realize that he was quite possibly the only single individual in attendance. All of his female friends had been in relationships with the Angels, or that playboy Issei.
Not only that, but a certain somebody that he's had his eye on for quite a while now seemed to be missing from the event.
This caused his already sour mood to worsen even further, and after internally debating his next course of action, deemed that it would be best to excuse himself before ruining the vibe of everyone kind enough to support him.
Not wanting to gather too much attention, he slipped away during the climax of the party where it would've been difficult to notice his absence.
The young man arrived home after quickly running on top of the roofs of the nearby houses and quickly making his way to his front door.
He let out a deep sigh after quite the exhausting day, fiddling with his doorknob that seemed to be frequently unlocked due to the friendliness of the neighbourhood.
It was the perfect mood to tuck himself to bed, trying to forget about this odd sense of loneliness he felt earlier today. It wasn't like he wasn't attractive or anything, in fact he was pretty certain that women found him quite handsome.
It was probably due to the fact that everyone seemed to have found their partners already, while he was generally focusing on strengthening himself and becoming the strongest version of himself he could be.
These fleeting thoughts were interrupted when he swung the door open and took a step inside his room, to his surprise finding Rias Gremory sitting on his bed, cross legged and wearing her trademark schoolgirl uniform.
Before even uttering a word, the first thing he noticed were her legs, clear, shiny skin accompanying her long, womanly legs.
A slight smile formed on her face as she noticed how intently he was staring, much to her amusement.
Raijin was broken out of his little trance when she gave him a heartwarming smile, hopping off of the mattress and walking towards him to give him a big, warm embrace, to which he gladly returned.
"Rias?... What's up?.."
"Nothing particular.. It's just that I've noticed how you haven't been feeling like yourself lately. Trust me, I can tell how lonely you've been feeling.. You've been craving attention, right? Since all of your friends have been busy with their boyfriends and everything.." she spoke softly into his ear, tightening the hold around his neck as they shared an overly friendly hug.
"T-that's right.." he reluctantly replied, slightly embarrassed that she seemed to see through his actions so easily.
"See, I knew it!.. And that's why I'm here. To give the birthday boy a little present!.. It could be anything you want, and if it's in my realm of power I'll be happy to grant you that wish!" she cheerfully exclaimed, excited to pay back the man who'd saved her and everyone else around her.
Given the fact that she was practically clinging onto him at the moment, and how soft her voluptuous body felt against his, it was obvious where his mind would wander, especially considering how "lonely" he's been.
The enticed young man's eyes travelled down towards her chest that was pressing against his pecs, noting how impressively busty her boobs were that they almost threatened to pop out from the tight confinements of her uniform.
They looked astonishingly massive, and given the eye-test measurement trick that was passed on to him by his master, Raijin discerned that she had to at least be an F to G cup.
Not only that, but considering how close they were in proximity, her pronounced facial features and how pretty she was made his heart flutter.
Her lips looked glossy and almost shiny, as if they were coated with lip balm just moments prior. Her crimson tinted hair was luxurious in its appearance, and the fragrance of her perfume and shampoo was hard not to notice.
It wasn't like he hadn't known this before, but Rias Gremory was undoubtedly sexy.
"So?.. What do you have in mind, Raijin-kun?" she said with a sweet tone to her voice, seeing that he appeared to be having trouble in terms of deciding what his "present" should be.
It took him a few moments longer to decide, in deep contemplation before he nodded his head as he came to a conclusion.
"Okay, I think I've got an idea.." he said, clearing his breath as if he was about to drop some heavy news. Rias waited in anticipation as she stared intently at his lips.
"Rias Gremory! I want to lose my virginity to you and have sex with my female friends at least once!" he loudly declared, heart racing adamantly as he could hardly believe he spoke the words that his mind had been pondering.