Please purchase tickets at Kobe-Kansai Airport Bay Shuttle ticket counter and then board the shuttle bus
for the pier at bus stop No. 12. After arriving at Kansai Airport pier, please board the Bay Shuttle.
(The Bay Shuttle takes about 30 minutes to Kobe Airport.)
https://www.kobe-access.jp/eng/howto.php
https://www.kobe-access.jp/eng/time.php