Achika is Tenchi’s mother and also of royal Jurian blood. Yosho, the first crowned prince was her father so that made her also of royal blood. Not much is known about her in the OAV series although more is explained in the movie Tenchi in Love. In high school, she falls in love with Noboyuki and marries him to have a child called Tenchi. A few years after Tenchi is born, (when he’s about five) she dies. Her death is cause by her fight with Kain, a ruthless criminal.