Mercury Seven summon the last group. The tests included spending hours on treadmills and tilt tables, submerging their feet in ice water, three doses of castor oil, and five enemas. Six candidates were rejected as too tall for the planned spacecraft. Another 33 failed or dropped out during the first phase of exams. Four more refused to take part in the second round of tests, which eliminated eight more candidates, leaving 18. From the 18, the first seven NASA astronauts were chosen, each a "superb physical specimen" with an IQ above 130, and the ability to function well both as part of
Seven of Seven most of whom resemble Nana's split personalities. A segment of the episode featuring Mutsumi takes place at the cherry tree seen frequently in "Seven of Seven". In Volume 18 of the manga, a ninja named "Nana" is introduced. She looks identical to Nana from Seven of Seven. She also had six copies, each one with a personality matching the various Nanas from Seven of Seven. Seven of Seven The TV series premiered January 10, 2002 on TV Tokyo and finished in run on June 27, 2002, totaling 25 episodes. A New Year's special episode was included in the seventh DVD