After three days, she manages to find the island using wave radar, but upon going in for a landing, falling debris from a burning building causes her to crash.
She believes that Ryugo, who was lost at sea in a typhoon six years ago, and her grandfather both attempted to reach Electric Island.
As the day of the cycle approaches again, Mikura finds out that her cell phone from the crash was found by a dolphin, who is being tracked by a researcher.
[1] Joe McCulloch of The Comics Journal found the combination of Mikura's "devastated mental state" and her scant attire to give the manga a voyeuristic aspect.
[9] In December 2015, Dark Horse Comics announced that it had licensed the manga in North America,[10] publishing the first volume on July 26, 2016.
[17] Silverman commended the detailed art and the believability of Mikura's island, noting that her light attire comes off as being for comfort rather than fanservice.
[1] Kate O'Neil of The Fandom Post noted Tsuruta's use of his intricate hand-drawn art to tell the story, describing the manga as "filled with whimsy and obsessive detail."
Club complimented the manga's art, calling it a "beautifully drawn and precisely detailed rendering of life on the Izu and Ogasawara islands".