Umi no Yami, Tsuki no Kage

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Lumi and Luka Kobayakawa are identical twins who both join the track team and have a shared admiration for an attractive senior, Katsuyuki Tohma. However, he chooses Luka. Despite Luka's efforts to avoid hurting Lumi's feelings, Lumi feels betrayed by her sister. On their way to a party celebrating the graduation of the team's seniors, they take shelter in a cave, which turns out to be a mass grave. The strange odor from the cave proves fatal to all the team members, with only Lumi and Luka surviving. Following this tragedy, Lumi undergoes a drastic transformation. One day, she eerily emerges from the floor of Luka's room. (Source: ANN)

Associated Names

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Japanese: 海の闇、月の影
English: Darkness of the Sea, Shadow of the Moon
Darkness of the Sea, Shadow of the Moon

Official Webtoon

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Characters More characters
  • Ruka Kobayakawa (小早川 流風)

    Kobayakawa Ruka

    Main

    Rumi's twin younger sister. Ruka is shyer than Rumi. however, sometimes, she becomes emotional like Rumi. Ruka was infected with a virus at an old burial mound, and she gets supernatural powers (flying in the sky and power pass-through), and an antibody t...

  • Rumi Kobayakawa (小早川 流水)

    Kobayakawa Rumi

    Main

    Ruka's twin older sister. Rumi is more tomboyish than Ruka, but they make a little difference such. Rumi and Ruka loved Katsuyuki but Katsuyuki fall in love with Ruka. Since her envy and hatred for Ruka have been increased by virus, she turn into evil. Wh...

  • Katsuyuki Touma (当麻 克之)

    Touma Katsuyuki

    Main

    A high school student. Katsuyuki is famous sprinter. He is a good looking guy and popular with the girls. He fall in love with Ruka. Only he can distinguish Rumi from Ruka. Katsuyuki meets with the case that Rumi causes. He supports her in a side of Ruka ...

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Popular Reviews All reviews
  1. w3bnovelreader
    w3bnovelreader rated it
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    What an absolute ride from start to finish. Ever since the beginning till the ending it was perfect. I absolute recommend it to anyone who still hasnt found the answer to the question "what is my purpose for living in this world?"
    Characters:10
    Story:10
    Ending:10
    0 0 Reply
  1. CultivatorAsura00J
    CultivatorAsura00J rated it
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    Final fight time
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  1. VanillaChinoTgw
    VanillaChinoTgw rated it
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    Try Kage no Jitsuryokusha ni Naritakute!
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  1. CulturedDaoist69
    CulturedDaoist69 rated it
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    Shinzo Abe is proud
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  1. RqmkbL8
    RqmkbL8 rated it
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    k
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  1. joshua_obalaiye_0242
    joshua_obalaiye_0242 rated it
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    I actually like this new chapter. people forget that all Even did was to give Paradis a chance at integrating with the rest of society. because of this, life on Paradis prevailed for a long time. People had kids, grew old, and died long before war destroyed Paradis itself. War is inevitable, as long as there are people with opposing ideals it comes back and somebody loses. But the people of Paradis had a chance to live, and even save their lineage. Even the child at the end looks like a dependent of the Ackermans
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  1. Granzazer
    Granzazer rated it
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    Add to that the fact that even the female bodies are cybernetic and don't work the same way as organic ones logic... yeah, the kunstler men were on some heavy stupid juice.
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