In the year 1999, a team of UN scientists in an attempt to tap into a new energy resource on a deserted island called Sansara, unknownigly open a portal to another universe, unleashing dormant biomechanical entities. Three years later, Takuya Goroza returns to the island of Sansara urged by a mysterious request by college chum Haruka Alford. Little does he know, his old friend isn't what he appears to be... (Source: ANN)

With their school's pool opening the next day, Iria schemes up the idea to hold a swimsuit contest. With Lisara, Mina, Quele, and Iria herself all participating in the event.

Huey Anthony Disward and Dalian trek to the land owned by Sergeant Callavos, where it is rumored that a Phantom Book may be located. With the help of a local herbalist named Thalia, the two reach a remote village and begin to confirm relevant information to their investigation. Although it has been reported that Callavos perished alongside his family in a gruesome fire six months prior, his daughter Florence has been sighted in a nearby forest—and is suspected of causing the blaze. To verify these allegations once and for all, Huey and Dalian travel to the lord's manor, only to uncover the truth behind a thorny past.

On the day of the Tanabata festival, Shidou Itsuka happens to meet the eerie Kurumi Tokisaki, who proceeds to ask him out on a date. Although nervous, Shidou accepts the offer. The two spend their time visiting to a planetarium, buying food at the festival, and trying out a mock wedding ceremony. Meanwhile, Shirou's friends—Tooka Yatogami, Yoshino, and Kotori Itsuka—are looking for him, while also enjoying the festival themselves. As Shidou spends the day with Kurumi, he begins to notice an unexpected softer side of her. He knows that Kurumi is infamously called the Worst Spirit, but the girl standing before him is a gentle soul. However, as the day draws to a close, Shirou finally begins to understand the truth behind it all.