The story revolves around winter seeming to last a little too long, leading the heroines to investigate. Their investigation leads them to the Netherworld, where the culprits are trying to gather the essence of spring for some unknown cause.
Wonderful Shrine Maiden of ParadiseReimu Hakurei
Hakurei Shrine's shrine maiden.
Her mind might appear normal, but in fact it's like spring in full bloom.
The shrine is always haunted by youkai, and they're very friendly to Reimu as well. She's hardly performing the role of a shrine maiden at this point.
Ordinary Black MagicianMarisa Kirisame
An ordinary girl.
The cold weather (or rather, the extra layers of clothing) weakens her abilities somewhat.
Her motivation in life is developing uses for magic that aren't beneficial to society. Also eco-friendly, too. She's actually a hard worker, as well as an avid collector.
Perfect and Elegant ServantSakuya Izayoi
The elegant maid of a certain mansion. She possess the ability to manipulate time.
Sharp and able, she has no real weak points but can't eat hot foods.
Since she wants her knife-throwing skills to be comparable to her cooking skills, Sakuya is incredibly good at cooking.
What Winter Left BehindLetty Whiterock
Stage 1 Boss
A youkai of the winter season who can be found in places without heat. She possess the ability to manipulate chill.
Letty is happiest during winter. She gets in the way of Reimu and her companions because they threaten to put an end to her time of greatest happiness.
Black Cat of Bad Omens Chen
Stage 2 Boss
A bakeneko living in a mountain possessed as a shikigami. She possesses the ability to handle sorcery.
Her true form is Ran's shikigami, which makes her a shikigami of a shikigami of a youkai.
Although she's a shikigami, her normal form is not always in a form of a charm, she can remains in her human-like form in normal situation.
Seven-Colored PuppeteerAlice Margatroid
Stage 3 Boss
A kinda ordinary magician. Mainly she possess the ability to handle magic.
She is a versatile magician, that has no specific strong or weak point in any area.
Alice has an obsession with collecting things, and has the habit of collecting magic items, especially magic books.
Poltergeist ViolinistLunasa Prismriver
Stage 4 Boss
The violinist of a poltergeist music group.
She 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.
Poltergeist TrumpeterMerlin Prismriver
Stage 4 Boss
The trumpeter of a poltergeist music group.
She 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.
Poltergeist KeyboardistLyrica Prismriver
Stage 4 Boss
The keyboardist of a poltergeist music group.
She 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.
Phantom-Human GardenerYoumu Konpaku
Stage 5 Boss
A being of half-human and half-phantom.
She's both the second gardener for the Saigyouji clan and the guardian of their mistress. Mainly she posses the ability to handle sword techniques.
Following the order the mistress of Saigyouji gave her, she has gathered all of spring essences in Gensokyo to make Saigyou Ayakashi bloom fully.
Ghost Girl in the Netherworld TowerYuyuko Saigyouji
Final Boss
Formerly the mistress of old Saigyouji clan, currently the ghost princess. Mainly she possesses the ability to manipulate death.
Yuyuko had read that breaking the seal on the Saigyou Ayakashi, making it bloom fully, would cause a certain someone to be resurrected; she started gathering spring's essence out of curiosity...
But she shall never bear witness to the blooming of the Saigyou Ayakashi.
Shikigami of the Sukima YoukaiRan Yakumo
Extra Stage Boss
Yukari's shikigami.
She does Yukari's work for her while her master sleeps. She has the ability to mainly use shikigami.
Ran has been a shikigami for quite long time, so she's more powerful than ordinary youkai. For that matter, she has enough power to possess her own shikigami.
Perhaps she has already forgotten that she herself is a shikigami.
Mastermind behind the Spiriting AwayYukari Yakumo
Phantasm Stage Boss
The youkai of boundaries, who awakens at spring. Mainly, she possesses the ability to manipulate all sorts of boundaries.
She and Yuyuko have known each other for a long time, but Yukari is not a phantom. She lives in the remotest place in Gensokyo. Her lifestyle involves a lot of staring at the Hakurei Border.
When humans from the outer world wander into Gensokyo, it's all thanks to fluctuations in the boundary caused by Yukari.
