Ruka Kobayakawa
main character
OVA
5.8
My TrackerPLANNING
Episode: 0 / 3
My Score:
Anime DetailsFINISHED
Estimated watch time
1h 30m
⚡ 1 days at 5 eps/day
Tags & Tropes
Twins90%Shoujo79%Love Triangle60%Gore55%Super Power53%Athletics30%
OVAFINISHED1989 FALL5.8 / 10 AniList score
Darkness of the Sea, Shadow of the Moon
海の闇、月の影• Umi no Yami, Tsuki no Kage
Synopsis & Story
Lumi and Luka Kobayakawa are identical twins who both are members of the track team and have a crush on a handsome upperclassman Katsuyuki Tohma, but he chooses the latter. While Luka doesn't want to hurt Lumi's feelings, Lumi feels betrayed by her own sister. On their way to the party celebrating the graduation of eldest members of the team, they take shelter in a cave, which turns out to be a mass grave, and all members were killed by the strange smell from the cave, with Lumi and Luka only survivors. After the tragedy, Lumi has become a completely different person, and one day she literally emerges from the floor of Luka's room... (Source: Anime News Network)
Trailer
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Featured Cast & Voice Actors
Franchise Universe & Related Entries
Aniphoria guide
Darkness of the Sea, Shadow of the Moon: should you watch it?
At a glance
Darkness of the Sea, Shadow of the Moon has been poorly received, with an average AniList score of 58/100 — 34% of 359 ratings are 8/10 or higher.
Of the 584 AniList users who started it, 5.3% dropped it, so it is dropped at a typical rate; 480 have finished it.
At about 1 h 30 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Drama, Horror, Romance — especially twins, shoujo, love triangle.
Episodes
3 episodes are listed.
Main cast & creators
- Original creator
- Chie Shinohara
- Director
- Satoshi Dezaki
- Character design
- Setsuko Shibuichi
- Music
- Souichirou Harada
Darkness of the Sea, Shadow of the Moon FAQ
- How many episodes does Darkness of the Sea, Shadow of the Moon have?
- Darkness of the Sea, Shadow of the Moon has 3 episodes of about 30 minutes each, roughly 1 h 30 min in total.
- Is Darkness of the Sea, Shadow of the Moon finished?
- Yes. Darkness of the Sea, Shadow of the Moon has finished airing — the final episode aired October 14, 1989.
- Is there a season 2 of Darkness of the Sea, Shadow of the Moon?
- No sequel is listed for Darkness of the Sea, Shadow of the Moon as of October 2026. You can continue the story in the original manga.
- Is Darkness of the Sea, Shadow of the Moon based on a manga?
- Yes. Darkness of the Sea, Shadow of the Moon adapts the manga by Chie Shinohara.