"Rikiはどのような性格タイプですか？ Rikiは、ISTP in MBTI、5w6 - sp/so - 385 in Enneagram、 in Big 5、 in socionics のパーソナリティタイプです。"
Kunio's rival, closest friend and Kyoko's boyfriend. Much calmer and stoic than Kunio, he lets his legendary stone fists do the talking.
