RamenWorldAnime on Instagram: "The post shares a comedic clip from the 2013 anime Nagi no Asukara (A Lull in the Sea), depicting a young boy playfully poking a girl's backside in a school setting, prompting the caption "Where did he learn that? " to highlight the prank's unexpectedness for a child character. Replies frequently reference the Japanese schoolyard prank "kanchō" (finger poke to the buttocks) and Naruto's "Thousand Years of Death" technique, illustrating cross-cultural anime humour t