Galko's skin got really dark as a result of tanning.
Otako comments that since Galko's skin has tanned so much, her nipples must be dark as well. Along with Ojou, Otako yells that Galko has dark nipples.
A bit sharp-tongued, but a good-natured, 
popular girl in class.
لاذعة اللسان بعض الشيء، لكنّها فتاة طيّبة وذات شعبية في الصف
Etwas scharfzüngiges, aber gutherziges
und beliebtes Mädchen in der Klasse.
Una ragazza senza peli sulla lingua, ma che 
in realtà è buona e molto popolare nella classe.
a garota popular e de
 boa índole da turma.