The SUMI ART exhibition @ Hiltopia Art Square (Shinjuku Hilton Hotel B1F) free entrance6/13 (Wed) - 6/19 (Tue) 10: 00 ~ 18: 30 <About Sumie> Sumie or Suibokuga means ink paintings with Japanese SUMI. The gradation of SUMI ink paintings is very beautifu</about>…