When the ship they were boarding en route to Kyushu was wrecked due to a severe storm and they became separated, Aritsuna was a member of four survivors, Musashibo Benkei, Kagemitsu HORI, Shizuka Gozen and himself; and these survivors escaped with Yoshitsune to Mt. Yoshino.
九州へ向かう船が暴風雨によって難破し一行が離散した時も、有綱と武蔵坊弁慶、堀景光、静御前の4人のみが残っており、義経と共に吉野山に逃げ込んでいる。