DxD: Building A Demon Clan From Scratch. - Chapter 246: Cooperation

After successfully reaching the Core Formation Stage and forming his Golden Core, Bai Langtian was betrayed by his own Master. His core was ripped from his body, and he was thrown off a mountain cliff into a valley full of demonic beasts.Thankfully, he survived the fall, and met his senior sister, Shangguan Yue Ling.She too had been betrayed by the same Master and pushed into this valley ten years ago. Ever since, she had been surviving alone by eating the corrupted flesh of demonic beasts.Now, Yue Ling revealed to Langtian a new path of cultivation:Demonic Cultivation.To reclaim his strength and take revenge, he must consume the flesh and essence of ten thousand demonic beasts.

Alex was just another ordinary gamer—until the day he died. Struck down by a terminal illness, he found solace in his favorite game, a vast fantasy RPG filled with powerful warriors, intricate politics, and world-shaking events. But before he could see the game's ending, fate had other plans.When he opens his eyes again, he’s no longer Alex from Earth. Instead, he’s Alex Dragonheart, a nameless extra in the very game he once played. Not a protagonist. Not even a villain. Just an unknown side character who was fated to die early, forgotten by history.Armed with only half of the game’s knowledge, an unawakened bloodline, and a mysterious sealed skill, Alex is thrown into a brutal world where strength is everything. His beloved younger sister is sick and needs treatment, but his past self had been powerless to save her. Not anymore.Determined to rewrite his fate, Alex will rise through the ranks, manipulate events from the shadows, and seize power that was never meant for him. If fate refuses to acknowledge him, then he’ll carve his own legend—one that even the gods will fear.After all, in a world where only the strong survive, even an extra can become a nightmare.( Okay guys just because there is a system tag does not mean he will get everything handed to him he will have to work hard to attain power because I will make it so )

15 years ago the world discovered magic as well as mythical beings (basically beings from various legends) in another dimension. Humankind learned to summon these dangerous mythical beings and use their power to great effect. Seven countries formed contracts with these “mythical beings” and gained their allegiance as a result. The mythical beings will choose their summoners on their 14th birthday and give them a stigma. Schools have been set up to train summoners and magical swordsman (basically bodyguards that give the summoners time to cast their spell) as a result.

15 years later after the finding of magic Kazuki Hayashizaki is chosen as a summoner and given a stigma to indicate that. This is surprising since males aren’t chosen as summoners due to their low amount of mana compared to females. As the first male to be a summoner Kazuki is under a lot of scrutiny by almost everyone.

To complicate matters his sister (who’s a magical swordsman) is against him going into summoner school to train there as a summoner. Because summoners and magical swordsman have a cat mouse thing going on where summoners look down on magical swordsman as inferior so his sister naturally is against him going there. She’ll stop him even if it means going to war.

Kazuki however is determined to thrive in summoner school and has already determined to give it his all. Even if he’s the lowest ranked student (ranked E) and his fellow students intend to demean him he’ll prove himself as the strongest summoner.

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

- Description from Novelupdates