Tetsu (テツ) (Hiro Shimono) is a male high school student who keeps one such shapeshifting creature named Cenco (センコ, Senko), which he can control via telepathy, though wants to keep it a secret.

An inquisitive girl named Yuki (ユキ) (Kana Hanazawa) chances upon Cenco at school when it is transformed into a bicycle.

After Tetsu arrives to retrieve the bicycle, Yuki inadvertently causes Cenco to transform back into its normally large form by poking it in the eye.

There, a boy named Shū (シュウ) (Ryōhei Kimura), who controls two of the creatures, confronts Tetsu in order to obtain Cenco.

They are subsequently attacked by the military with tanks and missiles, but are protected for the time being when Yuki changes the creature's shape to that of a massive walnut.

[10] Cencoroll had its world premiere at Canada's Fantasia International Film Festival on July 28, 2009 and was subtitled in English.

[4] A 90-second trailer was available at Tokyo International Anime Fair in March 2009,[11] and three television commercials were released between July and August 2009.

[14][15] Justin Sevakis of Anime News Network (ANN) praised Cencoroll's "visual inventiveness", stating that it had "a raw and immediate feel."