We present optical and near-infrared ( NIR ) photometry of a classical nova , V2362 Cyg ( = Nova Cygni 2006 ) .
V2362 Cyg experienced a peculiar rebrightening with a long duration from 100 to 240 d after the maximum of the nova .
Our multicolor observation indicates an emergence of a pseudophotosphere with an effective temperature of \sim 9000 K at the rebrightening maximum .
After the rebrightening maximum , the object showed a slow fading homogeneously in all of the used bands for one week .
This implies that the fading just after the rebrightening maximum ( \lesssim 1 week ) was caused by a slowly shrinking pseudophotosphere .
Then , the NIR flux drastically increased , while the optical flux steeply declined .
The optical and NIR flux was consistent with blackbody radiation with a temperature of \sim 1500 { K } during this NIR rising phase .
These facts are likely to be explained by dust formation in the nova ejecta .
Assuming an optically thin case , we estimate the dust mass of 10 ^ { -8 } -10 ^ { -10 } M _ { \solar } , which is less than those in typical dust-forming novae .
These results support the senario that a second , long-lasting outflow , which caused the rebrightening , interacted with a fraction of the initial outflow and formed dust grains .