Houkago Koukishin

This volume includes the following chapters:

Houkago Koukishin girl (放課後好奇心girl); Manga Bangaichi 2006-03
Perori Hisoyaka (ぺろり密やか); Manga Bangaichi 2014-07
Binetsu no Kanon (微熱のカノン); Manga Bangaichi 2008-04
Hyper Mini Engine (ハイパーミニエンジン); Manga Bangaichi 2011-11
Wakuwaku Shourai Sekkei (わくわく将来設計); Manga Bangaichi 2007-04
Toritsukima Show (取り憑きまSHOW); Manga Bangaichi 2010-08
Kimi wa Unazuku Dakede Ii (君は頷くだけでいい); Manga Bangaichi 2014-03