私以外人類全員百合 [Watashi Igai Jinrui Zen'in Yuri] #1

The first volume of this unique manga series from Kadokawa presents a world where everyone except the protagonist has turned into a yuri (girls' love) enthusiast. The story follows a lone holdout navigating a reality where all of humanity has embraced same-sex relationships, blending comedy and slice-of-life elements with its high-concept premise. This collected edition launches the series by mangaka Yūki Kamatani, originally serialized in Kadokawa's Comic Ace magazine starting in 2019.