Danbooru-based image board with a specialization in high-quality images.
cube_x_cursed_x_curious fear_(ccc) muramasa_konoha ooshima_miwa pantsu seifuku shimapan string_panties thighhighs ueno_kirika

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the girl with the glasses looks like mizuki himeji from baka to test, not the pink hair and adding glasses, but i feel like watching mizuki wearing a wig and glasses and of course contact lens.

the other girl (ponytail) resembles a lot to shimada minami from baka to test as well, she is not that flat as minami but still, she is like minami, look at that face.

maybe i'm crazy and it's just my imagination.
No, you're not crazy. The character designer (Ooshima Miwa) and studio is the same for C3 and BakaTest.