Listen to Me, Girls. I Am Your Father!/Funny

Novels

 * Volume 3, Chapter 3. Yuuta and Sora's Cooking Duel, to the point that even Yoshiko couldn't help but smile.

Anime
"Nimura: I feel bad for the sea lion..."
 * Episode 5. Listen closely, Hina hits her head on the table when introducing herself to Yuuta's neighbor.
 * The ending. There's Serious Business, and then there's that.
 * Episode 9. Miu compares Sako to a sea lion.