  The Korean very-long-baseline interferometry (VLBI) network (KVN) and VLBI
Exploration of Radio Astrometry (VERA) Array (KaVA) is the first international
VLBI array dedicated to high-frequency (23 and 43 GHz bands) observations in
East Asia. Here, we report the first imaging observations of three bright
active galactic nuclei (AGNs) known for their complex morphologies: 4C 39.25,
3C 273, and M 87. This is one of the initial result of KaVA early science. Our
KaVA images reveal extended outflows with complex substructure such as knots
and limb brightening, in agreement with previous Very Long Baseline Array
(VLBA) observations. Angular resolutions are better than 1.4 and 0.8
milliarcsecond at 23 GHz and 43 GHz, respectively. KaVA achieves a high dynamic
range of ~1000, more than three times the value achieved by VERA. We conclude
that KaVA is a powerful array with a great potential for the study of AGN
outflows, at least comparable to the best existing radio interferometric
arrays.
