The anime begins with your atypical Japanese male character who's main policy is to not do anything that require to much energy and takes the path of least resistance to get through life. Until, his elder sister convinces him to join her former high school club to keep it from disbanding due to lack of members. There he happens to meet a girl who will prove to be his complete opposite as she pulls him out of his everyday low- energy life in search of the answers to some of life's every day mysteries.
It's a must watch anime, over the course of which you can't help but want to continue watching to further satisfy your own curiosity.
