There is a direct limousine bus service from Kansai International Airport (KIX) to Takamatsu-city. It takes about 4 hours. Takamatsu-Chuo Interchange Bus Terminal is the nearest stop from the engineering campus. Before leaving your home country, you may decide your alighting stop with your student tutor. Your tutor will pick you up and take you to the university's international house or apartment.
Information for limousine bus service
http://www.kate.co.jp/pc/e_time_table/e_takamatsu.html
Information for Kansai International Airport
http://www.kansai-airport.or.jp/en/index.asp