Shoko almost broke in this episode, and I think it's good that she learns that not anything can be resolved so easily and that she has to harden herself and work hard to protect her country.
Someone translated the text in Shoko's shirt:
目玉焼き (めだまやき). "Sunny-side-up" fried eggs
(Oh sunrise your subtle teasing is killing me)
She also may have a weird sense of fashion, but her clothing choice holds some meaning. Like this one that indicates her positiveness that attracts others like a sun.