His and Her Circumstances (彼氏彼女の事情, Kareshi Kanojo no Jijō?), commonly abbreviated Kare Kano (カレカノ, Kare Kano?), is a manga series by Masami Tsuda. It was published by Hakusensha in LaLa from 1995 to 2005 and collected in 21 bound volumes. It depicts the romance between "perfect" student Yukino Miyazawa and her academic rival Soichiro Arima, and the relationships of several of their friends.

The series was adapted as a 26-episode anime television series by Gainax, directed by Hideaki Anno and Kazuya Tsurumaki. It was broadcast on TV Tokyo from October 1998 to March 1999.

The manga is published in English by Tokyopop as Kare Kano. The anime is distributed in English by Right Stuf International as His and Her Circumstances, and sub-licensed by Enoki Films USA with the title Tales at North Hills High.

Source: Wikipedia