The commentary is a pun between Nice Nature (naisu neichya) and flirting (ichya ichya): naisu neichya ichya. For now, that's the best I could word it, feel free to improve it.
MatikaneNGYAAAAAARRGHH!?Wanna try a bite, Trainer-san?Here, say "Aaaah" ❤ And that's what I witnessed yesterday!Somebody saw meeee---