Movie adaptation of the Sekaiichi Hatsukoi: Yokozawa Takafumi no Baai BL light novel.

The story is set during the middle of Japan's historic Edo period. It centers around Toriyama Sekiei, an eccentric but brilliant artist who only draws supernatural creatures—because he draws the creatures he actually encounters in his life.

When Prince Siegfried spots a beautiful swan with a crown on its head, for some reason he feels compelled to follow it. He discovers that the swan is, in fact, a princess named Odette, who is under a wizard's curse that causes her to become a swan by day. The wizard, Rothbart, wants to keep Odette to himself, and the only thing that can break the spell on Odette is a man who truly loves her, with all his heart and soul... (Source: ANN)

Asuta Jimon, a runaway, is wandering the streets at night when he has a chance encounter with a young girl collapsed beside her tricycle. After he offers her some food, she is moved by his kindness and asks him to join her organization, offering him a face mask and a sweet bun. In need of a place to stay, Asuta decides to play along and accepts her offer, adopting the nickname Dva. Little does Dva know, this cute girl is Kate Hoshimiya, the leader of Zvezda, a secret organization bent on world conquest. However, he soon realizes the true weight of her words as peculiar happenings rope him deeper into Zvezda and its eccentric members—the samurai-like vanguard Itsuka Shikabane, tech-genius Natalia Natasha Vasylchenko, troublesome Yasubee Yasu Morozumi, ex-gangster Gorou Shikabane, and multi-purpose robot Roboko Tsujii. With White Light, a powerful organization of justice, and the entire Japanese government against them, can Zvezda really dominate all humanity and let their light shine throughout the world?