Making fun of Nico's luck, more like. As often happens in the anime and diaries and game, and sometimes in the manga, Nico is basically in the right and being reasonable here. The combination of Nozomi being a character that goes too far (for comedy) and no one can really help Nico to win anything, ever, makes for a somewhat jarring mood and theme for comedy, really. Then again, in this doujin, she did choose to visit Nozomi, so ... I just think Nico would be way, way better off visiting, say, Rin and Hanayo. Or hanging out with Rin and Honoka. If the goal is Nico having fun, I mean. Eve Eli, Umi or Kotori would be better picks. Maki only on a good day. Nozomi has even fewer good days than Maki.