Hayate no Gotoku!! 2nd Season Episode 21:Whatever You Say The Cat You Own Is The Cutest Of All (なんだかんだで自分ちの猫が一番かわいい,Nandakanda de Jibunchi no Neko ga Ichiban Kawaii?) aired on August 21st 2009.
As Nagi and Jenny where lost in the plains of Africa, Nagi asks Jenny if she knew the way back before hearing Tama's weak cries. This is not present in the manga.
As Nagi was watching the news report on a giant snake, Nagi is shown to be wearing a peach colored short sleeved shirt over a purple long sleeved T-shirt and a gray skirt. In manga, she wore a white long sleeved T-shirt and a black skirt.
After Hayate had reminded Nagi that there was a large dangerous animal living in the mansion, Tama gestures for Hayate to meet him outside as he was being petted by Nagi and Maria. In the manga, Tama walks over to the entrance of the room and scratches the door before gesturing for Hayate to meet him outside.
After Nagi had grabbed Tama away from the predators, Jenny is shown using her novelty lighter to fend off the predators. This is not present in the manga.
After Isumi had saved Nagi and Jenny from the predators, Isumi is shown to be wearing a plain pink kimono. In the manga, Isumi wore a dark floral patterned kimono.
Chapter 137
As Linn was informing Hayate that Tama had accidentally left the mansion by getting into a delivery truck, Linn is seen watching footage of Isumi falling over in her maid uniform from the previous episode. In the manga, Linn was watching anime.
After Tama had used Izumi's phone to leave a thread on a message board to get directions home, various people including Koaru and Klaus are shown leaving spam posts on his thread. This is not present in the manga.
While on his way back to the mansion, Tama spots Shiranui on the road playing with a toy. In this episode, the toy is a humanoid doll. In the manga, the toy was a doll of Ah-kun from Moetan.
After Hayate, Tama and Shiranui had returned to the Sanzenin Mansion, Nagi is seen with a laptop labeled Valo. This is a parody of Sony's Vaio brand of laptops.