For you there will be alot of rats but for me their is a Bunny Island And Cat Island https://www.google.co.jp/search?safe=strict&source=hp&ei=qy8AXeGNDKWl_QaZ-Yu4DQ&q=cat+island+in+japan&oq=Cat+Island+IN+&gs_l=psy-ab.1.0.0l10.710.6403..7789...2.0..2.396.2527.1j14j1j1....2..0....1..gws-wiz.....0..0i22i30.A1sZHUNHz58 https://www.google.co.jp/search?safe=strict&ei=tC8AXf6VFI-0tQXghpGoCQ&q=Bunny+Island+in+japan&oq=Bunny+Island+in+japan&gs_l=psy-ab.3..0j0i5i30l2.12123.15511..15662...1.0..0.267.1940.0j13j1......0....1..gws-wiz.......0i71j0i7i30j0i8i7i30j0i7i5i30.3zFR15yS97Q