Happy

Happy! is a manga by Naoki Urasawa about young Umino Miyuki who lives alone with three younger siblings and decides to take responsibility for her elder brother's 250 million yen debt to the yakuza. She quits high school to start a professional tennis career.

The series was published in Big Comic Spirits from 1993 till 1999, and there are 23 volumes in total.

This show provides examples of:
Five Man Band:
 * Umino Miyuki is The Hero.
 * Sakurada Junji fits the Lancer bill contra Miyuki. Alternatively a Sixth Ranger.
 * The Smart Guy is the Comic Relief Trickster coach Thunder Ushiyama.
 * Kaku "Okiku" Kikuko (aka. "Ka ki ku ke ko") is The Big Guy, known in tennis for her straightforward, powerful style.
 * As the mostly non-confrontational do-gooder with a strong conscience, Ohtori Keiichiro serves the Chick role.