Halloween Rosia
Age ?
Gayness 7
Boldness 9
Commitment 5
Lewdness 3
Relationship Status In a relationship

Rosia is one of the characters in the series Show by Rock. A member of the band Criticrista and is both the band's lead vocalist and guitarist. She's also the student council secretary and honor student. She has a selfish personality, but due to her skillful gestures and ruthless behavior, many adore her. However, deep down, she is actually a very nice person who loves her friends. She's 148 cm tall. Her birthday is on July 23.

Yuri FeatsEdit

With TsukinoEdit

  • An R card has been released in which she and Tsukino hold hands together with both of them blushing under cherry blossom trees.
  • Won't forgive anyone who wishes to bully Tsukino.

With Cyan HijirikawaEdit

  • Before Plasmagica's performance, she dashed to Cyan, hugging her with hearts and sparkles forming in the background, with Cyan in a shy atmosphere that kept her from saying anything rightly.
  • Felt so lucky to be able to see Cyan again before Plasmagica's performance.


  • Can wink and blow hearts to Plasmagica members, addressing them as "big sisters".

Gallery Edit

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