First off, chiku chiku is the cutest hedgehog there is... Oku is so hilarious with all those fantasies of his (I really like and enjoyed, it gives the author a lot of room to be more creative)...I fell in love with soduo too, too bad he rejected oku at first. But my biggest love is yokoshima, he's the biggest sweetheart ever. Kinda funny how I remember everyone's name.
Okusan no Mousouteki Nichijou