The Class President believes that the size of the boobs and intelligence are inversely proportional,
so she thinks Galko is living a very carefree life.
But, she changes her mind when she sees the bulletin board Galko was intensely staring at.
You can check out the original comic here! http://info.nicovideo.jp/seiga/book_anime/#m1_gyaruko
Official Galko-chan Nico Nico Page and Episode List: http://ch.nicovideo.jp/channel/ch2617618
Episode 4 - "Is It True That You Can't Help Moaning?" : watch/1455085270
Episode 6 - "Is It True That Underwear Is Embarrassing?" : watch/1456384814