On a remote island far from the mainland named Urashima, a man washes ashore, with no recollection of his name or homeland. What he does recall, however, is that he is a time traveler with a mission: to save a certain girl from harm. As nightfall arrives, he meets Rinne Ohara, a girl who sings a tune that reminds him of a specific name—Setsuna—and decides to use it as his own.
Knowing another "Setsuna" herself, Rinne takes him to her household as a servant, hoping that he is the same one she remembers. On the other hand, Setsuna continues to learn more about Urashima, desiring to identify his lost past. He comes to know about the island's folklore, its three great families, and the endemic disease that prevents anyone afflicted from stepping out into the daylight.
As the mysteries of his missing memories and Urashima itself unfold, Setsuna must remember his purpose and fulfill his mission as soon as possible. But, as he witnesses the myriad of troubles plaguing the island, Setsuna begins to question—is his temporal displacement merely an effort to change a single girl's fate?
[Written by MAL Rewrite]+ More
Characters & Voice Actors

Harisu, Tarou
Supporting
Hatoma, An
Supporting
Interpreter
Supporting
Kinjou
Supporting
Kurutsu, Natsumi
Supporting
Kurutsu, Subaru
SupportingRecommended for you
Air
TV
24m
Black Jack: The Movie
Movie
93m
Tetsujin 28
TV
25m
After War Gundam X
TV
24m
Hamatora The Animation
TV
24m
Harmonie
Movie
25m
Noir
TV
24m
Strawberry Panic
TV
25m
Taiyou no Kiba Dagram
TV
23m
Tamayura: Hitotose
TV
24m
Ground Control to Psychoelectric Girl: Special
Special
29m
Galaxy Angel 3
TV
24m
God Eater
TV
23m
Mobile Suit Gundam SEED Special Edition
Special
95m
Birdy the Mighty: Decode OVA
OVA
27m