Thanks to his parents' job transfer, high school freshman Usa Kazunari finally gets to enjoy living on his own in the Kawai Complex, a boarding house that provides meals for its residents. Ritsu, the senpai he admires, also lives here, as do a few other unique individuals: his masochistic room-mate Shirosaki; beautiful, well-endowed Mayumi who has no luck in finding men; and sly, predatory college woman Sayaka. Surrounded by these people, Usa never finds his daily life boring.

Source: Wikipedia

Note: Bokura wa Minna Kawaisou, is a play on words that has two meanings: We are all from dormitory Kawai, and We are all pitiful.

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