LEAK says Blue Box will get anime adaptation announcement soon

Is Blue Box Anime Adaptation coming? OH YES! - Flickerbuzz 1

Kaoru Hana wa Rin to Saku illustration for reaching 1 million copies in circulation : r/KaoruHanaWaRintoSaku

question : r/BlueBox

Preview Images for Episode 1 : r/InsomniacsAfterSchool

Will Blue Box ever got an anime adaptation? : r/BlueBox

Bungo Stray Dogs (TV Series 2016– ) - News - IMDb

Aniplex of America

Blue Box Manga Adaptation: Cast, Designs, and Production Details

Special illustration for celebrating the 2nd anniversary of amagamisis series' & mercy naito's birthday : r/Amagamisis

Kaoru Hana wa Rin to Saku - Chapter 67 : r/KaoruHanaWaRintoSaku

Nijibana Rainbow Flowers : r/MissionYozakuraFamily

Happy the fanart I drew 3 weeks ago somewhat came true this chapter : r/BlueBox