A technique simulator (10) is provided with: an animal heart (12); a first balloon (14) that is inserted into a left ventricle (12L) of the heart (12); a second balloon (16) that is inserted into a right ventricle (12R) of the heart (12); a pump system (18) that is configured to expand and contract the first balloon (14) and the second balloon (16) via an operating fluid (L); and a blood supply unit (20) that directly supplies blood to three coronary arteries (13) of the heart (12).
