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Yuitia in Banshiryuu

Phantom, formally a human


Unknown, but in her current incarnation, more than 11 years


Seihou World (Unknown)

Music Themes
Official Games
  • Banshiryuu
    • C64 (Final Stage Boss)
    • C74 (Final Stage Boss)
    • v3.000 (Final Stage Boss)
Note: This article is part of the Seihou Project by the Doujin circle "Shunsatsu sare do?".

Yuitia (ユイティア) is Lagunas' older sister and a phantom. She is the final boss of Banshiryuu.

General Information

Yuitia died 11 years ago near Mars due a spaceship accident where she was along all that time. However, at the exact time of the accident, the sleeping soul of Yuitia did not at all notice her own death and continued to wander, which made her become a phantom. Yuitia was lost in her own existence. She didn't know who she was and what she is. Sometime later, she was taken into and fused with RedStorm (which lost her true character) and went on a rampage as well as causing a rampage among all the machines that used RedStorm. She was later rescued by VIVIT-r and Hirano Sakurasaki where put a stop to the rampage. Yuitia was thankful for been release. After 11 years has went by, Yuitia did not understand the flow of time at all and was confused upon meeting Lagunas and seeing that he has grown big.

Said in her profile, her personality changes when she wears different clothes. In the dialogues of both C67 and C74 versions, she was speaking in katakana.

Character Basis


Yuitia's design shows that she has brown eyes and long silver hair with two onyx coloured accessories, where she wears a white dress with cuffs that has a onyx coloured plaid pattern and a necklace with a spider-shaped ornament held by an onyx coloured neck ring.

She also has a second design, where she doesn't have her white dress. She instead wears a purple crop top-like shirt, shoulder pads with a spike and a white stripe along the edge, purple vambraces with a white stripe on both ends, and purple boots with a white stripe at the top. She has a purple loincloth with a white stripe around the edge and a her spider-shaped ornament seems to be wrapped around her chest as if it is attached to her shirt.



Lagunas is Yuitia's younger brother. Their relationship is unclear, but Lagunas appears to be preventing anyone from going near her when she was fused with RedStorm. Once she was rescued and upon meeting Lagunas who has grown big, she became confused due to her lack of understanding of the flow of time.


Yuitia appeared to have known Erich in the past, but this is unknown. On lunatic mode of C74 version of Banshiryuu, Erich says "Long time no see" and "You haven't changed at all..." to Lagunas. On the same mode, Yuitia says "Oh, it's old man Erich."


These set of images are Yuitia's second form, all unused in-game on the C74 version of Banshiryuu.

Additional Information

  • Yuitia is one of the few characters in the Seihou Project who doesn't need a Spaceship to attack in battle. The others are VIVIT, Muse, VIVIT-r, Hirano Sakurasaki and Icarus.
  • In the C67 and earlier versions of Hirano's ending, it was a typo that it was written as "10 years ago" instead of 11.

Official Profiles

Banshiryuu - C74 Manual


By some misfortune, she is Lagunas's older sister, the Phantom of a hooligan. Her personality changes as she changes her clothing..

Official Sources

Official sources