Infinite Parallel Worlds

is the OVA episode of the YU-NO: A Girl Who Chants Love at the Bound of this World anime. It is scheduled for release as special content of the 2019 anime Blu-Ray Volume 3 Box.

Summary
Takuya and Yu-No are inside the Tree of Vrinda, where they see the many parallel worlds that might have been. Among them is Mitsuki's figure, who cannot escape her tragic fate. Thus, Takuya reaches out for a certain event.

Trivia

 * This is an original scene to be not based on the anime and original games.
 * Yu-No reveals that she is aware of the fact that Kanna is actually her younger half-sister, despite the fact that they have never personally met.