Twin Powers: My Bond with Lingyu

As spiritual energy resurges globally, humanity enters an era of awakened superpowers. On his eighteenth birthday, Mo Xuanqi from Jiangcheng No.3 High School is tested as an F-rank waste talent, enduring ridicule and disdain from those around him. Only Xi Lingyu in his class is willing to treat him kindly. No one knows that Mo Xuanqi is not truly useless, but harbors the rare Twin Annihilation Divine Seal, which must coexist with Xi Lingyu's Myriad Life Breath Seal to unlock its true power. Rift anomalies quietly emerge, and otherworldly forces secretly covet the city. Viewed as a bottom-tier youth, Mo Xuanqi relies on his hidden divine seal to bide his time, analyzing countless abilities and defusing crises one after another. When chaos descends, the once-mocked youth slowly rises, standing shoulder to shoulder with the girl bound by fate, confronting threats from the darkness. — Description from novelcodex.org