Saiki Kusuo no Ψ Nan: Season 1, Episode 19

1 - 19: Hurray! Tsundere Grandpa + Hip, Hip, Hurray! Tsundere Grandpa + Welcome to the Farthest Amusement Park! + See You Again! Saying Goodbye to the Grandparents + Congratulations on the Video Game Release! Kunio Saitou's Horror Stories

Kusuo and his family visit his mother's parents, the very kind Kumi and the very forbidding Kumagoro, whose bark is much worse than his bite.