Ep. 6: Rin escapes Apos and becomes Yggdrasil's Guardian after consuming Kouki's time fruit.
Rin awakens in Apos' castle at Yggdrasil, having regenerated instead of being consumed. She kills a masked angel, revealing him to be Ihika. Mimi and Mishio locate the castle with Tajimamori's help, who explains Apos plans to sacrifice Rin to become the new eternal Guardian. Rin fights Laura but escapes after Apos betrays her. Laura joins Mimi and Mishio, leading them to Yggdrasil. Rin reunites with her ancient love, Tajimamori, and they consummate their relationship before Apos kills his father and pushes Rin into the tree. Mishio fails to rescue her initially, but Rin grabs Kouki's time fruit from her necklace. The fruit's spirit helps Rin break free from Yggdrasil's merge. Mishio, a Maenos descendant, pulls Rin to safety. As the new Guardian, Rin defeats Apos by feeding him Tajimamori and Laura's spores. In the epilogue, Rin gives birth to Tajimamori's son in the castle, noting his lineage will spread Yggdrasil's link to all mankind.
Episodes
- Ep. 2 · Rin investigates a stamp theft while Kouki seeks an angel linked to Yuki's missing brother.
- Ep. 3 · Kouki becomes an angel after dying to save Rin from Sayara's Higan plot on Death Island.
- Ep. 4 · Teruki witnesses Ruon's murder and faces cyborg attacks while uncovering AI origins.
- Ep. 5 · Thirty years later, amnesiac Rin hunts immortals while her daughter Mishio uncovers the truth.
- Ep. 6 · Rin escapes Apos and becomes Yggdrasil's Guardian after consuming Kouki's time fruit.