Flowers have always had a big presence in the Attack on Titan series, with one of the first shots establishing the series in the first episode being some blue flowers.
To celebrate the fall season in Japan, an Attack on Titan themed flower shop will be opening in the Shinjuku Marui Annex event space on the 6th floor.
Previously, the department store has hosted a live-sized Colossal Titan head in its foyer to promote the shows third season.