![large-ad385de004aab787429f866b59c340e4.jpeg](https://media.kitsu.app/anime/12127/poster_image/large-ad385de004aab787429f866b59c340e4.jpeg)
He is the husband of Saiki Kumi and father of Kurumi, the father-in-law of Saiki Kuniharu and grandfather of Saiki Kusuo and Saiki Kusuke. Kumagoro is a grumpy old man who hates Kusuo's father and loves his daughter. He is actually a tsundere who truly wants to dote on his grandchildren. (Source: Saiki Kusuo no Psi-nan Wikia)