Binbougami ga! 2 - Not as funny as the first episode. The part where Sakura summoned those animals was pretty great though.
Natsuyuki Rendezvous 2 - I wasn't even a fan of the first episode, but I guess it was about the same. I think it moved through the episode better without spending half of it on self inspection or whatever.
Imouto 2 - Most of the shows still have episode 2 for me to watch, but this is already looking like it'll be the biggest improvement over episode 1.
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Chrono1219