The power of Kagehina: may cause jealousy, cuteness overload, fainting, d'awww moments, and much fluff. Ex: http://www.mangago.zone/read-manga/haikyuu_empty_doujinshi/bt/277260/Ch0/11/
(but then Iwa-chan could care less Grand King)
http://www.mangago.zone/read-manga/haikyuu_empty_doujinshi/bt/277260/Ch0/12/
Besides being really cute and funny, what I loved the most were the side characters, I was more entertained by Akira and his story than the main couple lol. And their teacher is so great, plus that smexy guy with long black hair & a goatee that works at red shield, yum! I don't know how to feel about that last chapter where Takashi had that rape dream and was starting to see them romantically, cuz I really liked how he loved him as family, and that kind of ruined it. He redeemed himself by playing it cool though.
A nice diverse set of stories, some of the plots were a bit meh :/ for me but it's still good.
My favorite was the funny one with the bankrupt company.
That 'scary face' though: http://www.mangago.zone/read-manga/subarashii_shitsuren/tr/89271/page/64/
sooo cute.
http://www.mangago.zone/read-manga/haikyu_dj_kimi_ni_shika_kikoenai/mi/mi_chapter-1/28/