Blooming in ZERO/Event Story

Trivia

 * As this event is a collaboration between BanG Dream! Girls Band Party and Re:Zero, there are numerous references to Re:Zero in the event story and card stories. They include:
 * The cat keychain Yukina holds in her untrained card art, as well as the cat in her Live2D Model looks similar to.
 * The "return to start" challenge of theme park is a reference to main ability, "Return by Death", which allows him to go back in time after dying. Furthermore, the "missions change daily" part of the event is a nod to how Return by Death takes Subaru to an unspecified "safe point" each time after reviving.
 * Just like in the series, the first part of the story takes place in the royal capital, while the second part takes place in a mansion deep in a forest.
 * During the first stage, Roselia runs into a who then sells them an "appa."
 * During their second mission, Roselia are tasked to find an insignia. In Re:Zero's world, insignia refers to a small ceremonial touchstone badge with inset a red jewel in the middle, which reacts to its owner if they are qualified to participate in the . In Re:Zero's first arc, Subaru helped the main heroine get her insignia back after  stole it from her.
 * After arriving to the mansion, Roselia encounters  waiting for them, who then guide them to the challenges inside the mansion. Further references to Rem and Ram appear in Ako's Card Story, where she and Tomoe read an old picture book about oni siblings, who happen to be red and blue.
 * In Sayo's Card Story, Ako calls her about the theme park's collaboration in Neo Fantasy Online, where they need a big group of players to defeat a giant.
 * In Yukina's Card Story, Rinko and Ako mention an event at the theme park that is super hard trigger, where players are to stop a fight between two cast members in an alleyway. This is a reference to a scene very early in the series where Subaru gets attacked by three thugs in an alleyway.
 * In Rinko's Card Story, Rinko and Sayo note that the theme park is filled with dragon imagery, then proceed to discuss the theme park's world's lore and what Rinko had read online. According to Rinko, the inhabitants of the fantasy world worship, and have worshipped since ancient times, and when making important promises, chant "I swear upon the Dragon." Two other things Rinko mentions are how "one  on the western continent speaks in a very distinct dialect, similar to a Kansai dialect" and how the world also has.