A girl creates a utopia "Fantasia" for the heroines of various stories, where they will no longer be burdened with anyone’s dreams. As this utopia grows out of her control, she begins to question if it really is the best place for anyone to be in...
A girl (Miku) and her cat (Rin) get lost in a paradise - inside a storybook. She sets out with the intention of finding the treasure (leeks). Chapter by chapter, she explores over all the land inside the book, eventually saving the princess by making her forget her sad dream.
A girl (Shii-tan) is given a θ (theta) 'capsule' by a strange gentleman, which she describes as having "a sweet and fun taste." She begins to see and feel strange things, like fish flying in the sky, the sky and sea melting, and the feeling of sinking. She feels happy, yet alone, and realizes she loves the whole world. At the end an image hints that she died.
A girl (Denpa Shoujo) with a feathered pen wants to create her own continuation of a story. She creates this absurd world - The Fantastic Garden "Fantasia" - where the heroines from other stories are free from the burdens of being relied on by others.
The Girl begins to criticize herself, feeling that her creating the Fantastic Garden is only a way of asserting herself, or perhaps self-fulfillment. When this world ends, what would be left? She becomes angry, and breaks the pen that she created the world with. The Girl, powerless, is swallowed by the "Shadow" - the Fantastic Garden...
In the Country of Light, a Girl (Miyako Wasure) is granted the Sword of Moonlight, and tasked to repel the soul-stealing fog that plagues their country. She heads to the Country of Night, wherein lies the King of Night, a goblin who had created the fog. Though she bravely plans to oppose him, she is defeated, and the World of Light is swallowed by a strange darkness...
Brainwashed by the self-satisfaction from creating the Fantastic Garden, the girl struggles to keep her control over it, but in the end is competely left powerless. Even though she hates it, she knows she can't leave, because there's nowhere else for her to be except in the Garden.
An instrumental track composed of various musical bits from both The Fantastic Garden songs and songs from cosMo's 'Infinity' series, with some vocalizations from Miku.
Two girls, Rho and Lambda, consider the various possibilities and outcomes that come with changing the future, as questions a infinity of things. The one they seek is a "concurrent light (ray)" that goes through the past, future, and present. An "Ideal Solution" will be met after escaping the closed circle of the "Forgotten World."
Two lovers head into the abandoned city Atelestia to pledge their everlasting love at the city's clock tower - a wonderful charm that's continued for hundreds of years. As they climb the clock tower, it begins to snow, and it "even changes the city that settled into sleep into a theater." Though there's no one else in the city, the clock still tolls the hour, as if giving the two its blessing.
A medley of the songs -0-ZERO, ANTI THE∞HOLiC, ∞InfinitY END, HYPER∞LATiON. This song shows Miku wearing an attire with the same style of Rho and Lambda, eventually this design would be featured in the Project DIVA 2nd as Miku's module.
Theta "θ" is the 8th letter in the Greek alphabet. Though it resembles a capsule, the letter theta can also be read as a Greek shorthand for death (θάνατος 'Thanatos').
It's hinted the mysterious gentleman who gave the capsule to Shii-tan was the Dr. Realist from Star Girl and the Fantasy Cinema.
Continuing with that series, although the reason of Shii-tan's outcome is never specified, her fate can be seen in the background of the song The Runaway Boy and Lost Girl
The argument provided by cosMo...
About Rho and Lambda:
Their names seems to be a reference to the initial letter of the Vocaloid's name who represent them. Rho (Greek letter for R) stands for Rin while Lambda (Greek letter for L) stands for Luka.
Both girls have later apparitions in the Star Girl and The Illusion Paradise series, where their hidden back story in the Fantastic Garden is revealed.
CosMo posted a comical explanation why Rho and Lambda seems to have around the same height and body structure, despite the evident differences between Rin and Luka. The explication is that Len is dressed as Lambda for these plays.
