An investigation team under Shyamalan's orders investigates the ruins of Sawajiri Village, even killing a policeman when Murota and Hayamiya decide to investigate. Birdy saves them from some of the armed men and fights the reconstructed marionette before she gets injured during an encounter with Gomez after defeating the marionette again.

Birdy and Tsutomu head to the Lost Bird to figure out a way to purge the Ryunka out of Sayaka's body. The two were able to do so, at the cost of Tsutomu's own body when he sacrificed it to allow Birdy to kill him again and purge the Ryunka parasite out of his body with Nejula in charge of containing it. The Japanese government had covered up the events as the JGSDF had mobilized in Roppongi. Due to the events, Sayaka loses some of her memories including her encounters with Tsutomu. Birdy once again merges with Tsutomu until a new body can be readied. Meanwhile, Gomez and his boss Revi had a conversation about whether Birdy is a threat, with Gomez telling Revi to take some precautions against her.

Birdy is informed of a break-out from an intergalactic prison, and manages to track down one of the rogue prisoners. Although she is ordered to apprehend the criminals alive, he was killed by the time she arrived on the scene. The only clue is a disguise chip, which dissolved the body.

Birdy meets up with her childhood friend, Nataru, and they talk for a bit. They are interrupted by a girl in a wheelchair, who treats Birdy coldly. A second of the criminals is tracked down, and she pursues him for a bit, but he escapes only to be killed in a violent manner Birdy is not familiar with.

Continuing the memory dive, Tsutomu learns more of the Central Tower attack and Birdy's part within it.

The School Festival opens where Hayamiya gives her piece on the disaster refugees. Nataru finds and severely wounds Gatoru before he and Moss escapes. Hoping to cut a deal with Revi Moss kills him but is rejected and decides to fight Nataru win or lose.

Nataru and Moss fight but Moss is nearly killed before being rescued by Birdy who attempts to convince Nataru to surrender and receive treatment before his Iksiola state kills him. He refuses and nearly kills Birdy before Senkawa switches in and convinces Nataru that being an Iksiola means more than just killing. Nataru relents and jumps back in time to the moment of the tower attack becoming the man who saves a young Birdy via a time-loop.