[Mentar]

Spoiler for c321:

I don't think that Luca is sickly, just a bit overworked and stressed out.

What's important in this chapter is that while Luca is taking her efforts very seriously, and confronting Hina's brutally open and honest critique with a professional mindset, Nagi is merely messing around with irrelevant details like the Circle name. It's not difficult to see that most likely Luca will be successful where Nagi is still going to fail - this might actually lead to the famous "damn you Luca!" Nagi-tearfully-running-scene. The difference in the "harsh grown-up team" (Luca, Hina, Hayate) to the "cute kid team" (Nagi, Hamster, Chiharu) is quite noteworthy.

Also noteworthy: This is SO like Hina again ... the shipper in me is pleased.