Auroral Breakup (a Touhou LW original) refers to the phenomenon where auroras explode in brightness and spread out across the sky. This is an apt temperament for this Flandre, who repeatedly fluctuates between attending school and hiding away in her room. She can leave her room whenever she wants, so there's no point locking the door. (Strong against Star Essence.) Flan loves fruit so much that she wishes every tree was a fruit tree. (Strong against Water Phase and Metal Phase.) But she gets dizzy when she goes outside during the day... (Weak against Sun Essence.) To Flandre, it's completely normal that every day is her first day back at school. When she wakes up in the morning, she's always excited to leave the room she's been cooped inside of for so long and see what new challenges await her at school. Seeing Flandre act so strangely, her sister probably regretted letting her go outside, but in truth, there was no real way to stop her. Flandre has fully embraced spring as the season of new beginnings.

The ability of Flandre Scarlet from the world delirious with eternal spring (a Touhou LW original). This ability is essentially the same as the abilities of Flandres from other worlds. Similar to the events of our world, this Flandre decided to leave her room after the Spring Scarlet Mist Incident. She wanted to go outside as soon as the incident was resolved, but it took some time for her to get ready. (She's a noble lady, after all.) However, it seems she's caught in a loop where she breaks out of her room whenever spring repeats in this world... It's actually kind of scary. It doesn't seem like she's jumped backward or forward in time to do this, though. Flandre's world is a variant of the beach world of eternal summer. The large volume of water that covered most of the summer world's surface doesn't appear to exist in this world, but that is merely an illusion. With spring temperament in ascendance, countless trees and plants grew, and all the excess water is now stored inside them. The land is covered in beautiful spring plants with massive cherry blossoms in full bloom, standing tall above them all. These changes have also caused spring to never end. Or rather, spring does end, but a new spring starts immediately after. The four seasons of spring, summer, autumn, and winter have been replaced with spring, spring, spring, and spring. The Fairy Herald of Spring couldn't be happier! Flan was also in a good mood as she walked to school. She was thinking about how she now has the chance to do all the things Remilia does and how she might even make 100 friends. Her heart was full of joy, excitement, and hope for a bright and cozy future. This wouldn't be all that unusual, except that she does this every day... Spring keeps repeating. There are constant graduation ceremonies and ceremonies for new students, and the cherry blossoms bloom and wilt in an unending cycle. Does this mean Flan repeatedly breaks down the door of her room every morning to escape outside...? Remilia decided not to confront Flandre about this because she knew if her foolish little sister changed her routine, she would keep trying to make friends until she utterly destroyed this spring paradise. But one mystery remains. How did Flan and Koishi become friends?