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Prismriver Sisters

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The Prismriver Sisters in Perfect Cherry Blossom

The Prismriver Sisters (プリズムリバー三姉妹 Purizumuribaa San-shimai) are three characters named Lunasa Prismriver, Merlin Prismriver and Lyrica Prismriver, together appearing as the stage 4 boss of Perfect Cherry Blossom. Lunasa, Merlin, and Lyrica are collectively called the "Prismriver Ensemble" and perform at parties and festivals. At first sight, their instruments (Lunasa with the violin, Merlin with the trumpet, and Lyrica with the keyboard) may seem scattered and disconnected, but they still perform magnificent music. There was also a fourth Prismriver sister, named Layla Prismriver.

General Information

These three sisters are poltergeists, made by Layla Prismriver to have the appearances and personalities of her three older sisters from whom she had been separated. Thus, they are technically all the same age since they were presumably created at the same time. They only act out the roles of oldest, middle, and youngest sister based on whichever one they were made to resemble.

It is known, based on their official profiles and from comments by Eiki, that none of the original four sisters are still alive today. However, it's unknown how long ago the events that spawned these three poltergeists occurred.


Performing on musical instruments without hands or feet

In Perfect Cherry Blossom, this is the main ability that all three sisters have been specified to have. This probably derives from the ability poltergeists have, put to specific use in performing with musical instruments. By manipulating the spirits of instruments, they're able to manipulate the spirits of notes to create sounds. Since they needn't have direct contact with the instruments, they're able to play music impossible to play by hand.

Since the three sisters' musical performance is something that they have learned themselves after Layla's death, their previous abilities were probably along the lines of "moving things without hands or feet" or "making sounds without hands or feet". The former is because poltergeists in general can move things and make them float. The latter is because in the general phenomena of poltergeists, they can be heard from anywhere (a rapping noise, for example).

Background Information

Sprites of the Prismriver Sisters in PCB


Sometimes "Prismriver" is translated as niji-kawa (虹川), which means "rainbow river", even though "rainbow" does not mean "prism". Thus, Layla and her sisters are sometimes referred to as the "niji-kawa sisters" (虹川三姉妹).


Raiko Horikawa

As of Alternative Facts in Eastern Utopia, Raiko Horikawa has joined the Prismriver band.






Spell Cards


Lunasa Prismriver

Name Translated Comments Games Stage
Total: 5
弦奏「グァルネリ・デル・ジェス」 String Performance "Guarneri del Gesù" PCB
St. 4: E/N
神弦「ストラディヴァリウス」 Divine Strings "Stradivarius" PCB St. 4: H
偽弦「スードストラディヴァリウス」 Fake Strings "Pseudo Stradivarius" PCB St. 4: L
騒符「ノイズメランコリー」 Noise Sign "Noise Melancholy" PoFV Use
騒符「ルナサ・ソロライブ」 Noise Sign "Lunasa Solo Live" PoFV Use

Merlin Prismriver

Name Translated Comments Games Stage
Total: 4
管霊「ヒノファンタズム」 Trumpet Spirit "Hino Phantasm" PCB
St. 4: E/N
Nether Trumpet "Ghost Clifford"
Trumpet Spirit "Ghost Clifford"
PCB St. 4: H/L
騒符「ソウルゴーハッピー」 Noise Sign "Soul Go Happy" PoFV Use
騒符「メルラン・ハッピーライブ」 Noise Sign "Merlin Happy Live" PoFV Use

Lyrica Prismriver

Name Translated Comments Games Stage
Total: 4
冥鍵「ファツィオーリ冥奏」 Nether Keys "Fazioli Nether Performance" PCB
St. 4: E/N
鍵霊「ベーゼンドルファー神奏」 Key Spirit "Bösendorfer Divine Performance" PCB St. 4: H/L
騒符「ソウルノイズフロー」 Noise Sign "Soul Noise Flow" PoFV Use
騒符「リリカ・ソロライブ」 Noise Sign "Lyrica Solo Live" PoFV Use

Prismriver Sisters

Name Translated Comments Games Stage
Total: 7
騒符「ファントムディニング」 Noisy Sign "Phantom Dinning" PCB St. 4: E/N
騒符「ライブポルターガイスト」 Noisy Sign "Live Poltergeist" PCB
St. 4: H/L
合葬「プリズムコンチェルト」 Funeral Concert "Prism Concerto" PCB St. 4: E/N
騒葬「スティジャンリバーサイド」 Noisy Funeral "Stygian Riverside" PCB St. 4: H/L
大合葬「霊車コンチェルトグロッソ」 Great Funeral Concert "Spirit Wheel Concerto Grosso" PCB St. 4: E/N
大合葬「霊車コンチェルトグロッソ改」 Great Funeral Concert "Spirit Wheel Concerto Grosso: Revised" PCB St. 4: H
大合葬「霊車コンチェルトグロッソ怪」 Great Funeral Concert "Spirit Wheel Concerto Grosso: Wonderous" PCB St. 4: L

Additional Information

  • Their spell card background has an image of a score for Last Spring, from Two Elegiac Melodies by Edvard Grieg.
  • Layla Prismriver, the youngest of the original four sisters, has never had any known official art. Her only mention seems to be in the Prismrivers' official profiles.
  • The Prismriver Sisters, along with Mystia Lorelei and Yuuka Kazami, were the only Windows-era spell card-capable characters who did not appear in Shoot the Bullet.


  • Since Lunasa is the eldest sister, she's commonly referred to as "older sister" (ルナ姉 luna-nee).

Official Profiles

Perfect Cherry Blossom - キャラ設定.txt

  長女 ルナサ・プリズムリバー
  次女 メルラン・プリズムリバー
  三女 リリカ・プリズムリバー



Three Poltergeist Sisters

Eldest Sister: Lunasa Prismriver
Middle Sister: Merlin Prismriver
Youngest Sister: Lyrica Prismriver

Stage 4 boss, a musical performance group as poltergeists. Noisiness times 3. They have the ability to perform with instruments without hands and feet—times 3.

The Saigyouji family enlisted the Prismriver sisters to provide music at a convention, promising them a flower-viewing in return. The three of them are always summoned to banquets and such; their music stirs things up. They're like phantomic versions of publicity-generating cultural icons.

This time, the Saigyouji family is holding an extravagant flower-viewing festival, so they would naturally be invited.

Lunasa Prismriver PCB   ルナサは何をやっても優秀な優等生タイプ。何事も曲がったことが嫌


Lunasa is an honour student type who excels at everything she does. She hates cheating, and confronts all challenges with fairness and great strength.

She does what she has to do but her personality is somewhat dark on the outside. Furthermore, her honesty makes her easy to deceive.

She is most skilled with stringed instruments, especially violins. She usually prefers solo performances.

Merlin Prismriver PCB   メルランはちょっと変ったタイプ。魔法の力は最強だが使い道を誤る。


Merlin is an unusual type. Her magical power is the strongest but she often slips up when using it.

Her personality is overflowing with good cheer. When she picks up an interest in something, she obsesses over it like a maniac.

She is most skilled with wind instruments. Trumpets in particular.

Lyrica Prismriver PCB   リリカは狡猾な性格。普段は姉達にけしかけて自分から戦おうとしな


Lyrica has a sly personality. She usually spurs her older sisters into battle because she doesn't like to do her own fighting. Using minimal effort for maximum gain is the only thing she thinks about.

She knows herself well and is smart. She doesn't act without first thinking 3 moves ahead.

She is very skilled with all kinds of instruments, but usually works with either keyboards or percussion.






The three of them were born long ago. At that time, there was a human noble, Count Prismriver. The Count had four daughters, whom he cherished.

However, due to an unfortunate accident, the four daughters were orphaned. Without any other relatives, each daughter went her own separate way. The fourth daughter, Layla, was unable to leave the mansion that held so many of her memories. Using her strongest power, she conjured poltergeists with the appearance of her older sisters, then vanished along with the mansion and the poltergeists.

Time moved on, and the death of the four people from those old days came to pass; the poltergeists' mansion remained in Gensokyo. The three poltergeist sisters continue their noisy lives in that mansion to this day.

The musical performances given by those three, at various places of announcement, a fusion of casual rhythm and classical instruments, are loved by the inhabitants of the cheerful Netherworld. Yet, the performance itself provides no additional effect, and does not heal.

Official Sources

Official sources