K-Dramas like The Defective

12 shows with a similar feel

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  Heaven Official's Blessing (2020)Also sci-fi & fantasy

  Banished to the mortal realm to exorcise ghosts, an eight-century-old deity reckons with a demon and slowly uncovers dark secrets behind the many heavenly gods.

  1 tracking it here
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  Love Between Fairy and Devil (2022)Also sci-fi & fantasy

  When a low-ranked fairy accidentally resurrects a powerful demon, their fates become cosmically entangled as the world is thrown into turmoil.

  2 tracking it here
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  Rattan (2021)Also sci-fi & fantasy

  An encounter leads to a lifetime of memories. An ordinary man accidentally wakes the mysterious Si Teng from decades of slumber. In helping her search for her identity, they overcome many obstacles to grow together in love. On a journey to retrace his ancestry, young designer Qin Fang accidentally sets off a contraption that leads to him to a woman named Si Teng who is bewitchingly beautiful and powerful. Confused by the fragmented memories in her mind, Si Teng claims to be Qin Fang's new master and forces him to aid in her plans. Si Teng gradually opens up to Qin Fang and grows to discover the novelty and wonders of living. However, Bai Ying who has became crazed from her obsession becomes a roadblock in their relationship.
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  Affinity (2026)Also sci-fi & fantasy

  In 2051, bioengineering student Wu Nongyu and sociopath Xie Xinxu are drawn together by a mysterious genetic attraction. As their relationship grows, they must confront their pasts and navigate love, trust, and redemption while racing to find a way to break the powerful bond that threatens to control their lives.

  3 tracking it here
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  Perfect World (2021)

  Born into a unique world where villages fight to gain power and control, the main character, Shi Hao, is a genius blessed by the heavens born under the poorest of conditions. His clan, however, has a mysterious past. To rise up and become the genius he is meant to be, the clan goes through every effort to aid his cultivation as they battle through fanatical monsters and engage in power struggles with other clans. His journey will bring him through unknown lands until he is able to become a person that can truly shake the world.
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  Go for It, Nakamura-kun!! (2026)

  Nakamura falls for his classmate Hirose instantly, but they've never spoken. Can his bumbling attempts to say hello lead to a real connection?
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  纵然Also sci-fi & fantasy

  Yi Zimo, once controlled by his parents, meets Wu Xiu and is inspired to rebel, changing his name to Ren Zhan and leaving to study abroad. Years later, now a photographer, he returns to Fu'an and discovers a phone that lets him communicate with Wu Xiu from ten years ago. Determined to correct the mistakes of the past, Ren Zhan helps her regain her lost memories, rekindling a love they both missed out on.
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  Veil of FlamesAlso sci-fi & fantasy

  Yan Qige, a cursed demon hunter, and Yu Sang, a bamboo spirit, are bound by a mysterious soul-calling lantern. Together, they embark on a thrilling journey, uncovering the secrets of their intertwined destinies while navigating the complexities of their evolving relationship.
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  Josephina the Whale (1979)
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  Love Between Fairy and Devil (2022)Also sci-fi & fantasy

  The ancient demon, Dongfang Qingcang, who has been suppressed for a thousand years, comes back to the three worlds and starts a war between immortals and demons the moment he is reborn. In order to get out, the demon lord swaps souls with the immortal Lan Hua, who has difficulty controlling her magic power, and accidentally kills her immortal body. In desperation, the two embarked on a journey to find a new body. Along the way, the two experienced all sorts of things, fighting and joking, and Lan Hua started to develop feelings for Dongfang Qingcang, but little does she know that all this time, Dongfang Qingcang only used her as a tool to resurrect the ancient god of war Chi Di, and under the calm a larger conspiracy is also quietly carried out ......
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  The Land of Miracles (2022)Also sci-fi & fantasy

  This story revolves around two teenagers of different identities and different cultural backgrounds – Fa Hua and Lan Ge, whom because of a magic weapon "Only Pearl" were connected together to save humanity. The two teenagers have a symbiotic relationship because of the artifact, which makes the two teenagers with very different personalities need to go through a variety of tests together, with that, the relationship between the two see subtle changes, and they began to understand each other, and gradually the two became as close as siblings.
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  Stars Align (2019)

  Toma Shinjo has one mission: save his school’s tennis team. And his only hope rests on the talent of Maki Katsuragi, who’s reluctant to part from his studies. This will be the team’s last summer together unless they convince Maki to step on the court!