Romio
has taken flight in her magical battleship, and Sammy, Misa, Ryo-ohki
and Rumiya have given chase. As the magical crew finally confront the
wicked Romio, she tells Sasami that she is really her sister. For a
moment Sammy believes her, but Misa brings her around with a stout kick
to the head. Romio goes on to explain why she is hell-bent on destroying
the Earth. She reveals that long ago, when Earth and Juraihelm first
went their separate ways, she was an ordinary human selected to be a
magical girl. Despite her efforts, the planets' cultures drifted apart
and, she believes, the evil part of their civilisation went to the Earth.
Only by destroying it can she eliminate the influence of Earth's materialistic
culture and lay her past demons to rest. Sammy protests, insisting that
by bringing Earth and Juraihelm back together both planets can benefit,
but Romio is not interested in a compromise. Both Misa and Sammy try
to attack Romio, but she has protected herself with a powerful magical
field. They quickly realise that the only way to beat her is to find
and destroy her NT system. Misa tells Sammy to go and find the NT system,
and she and Rumiya attack Romio to keep her from stopping them.
As Sammy and Ryo-ohki
head deep into the bowels of Romio's battleship, they come across Ramia
lying in a corridor. She is still weak from having all her magic sucked
out by Romio's NT system, but she directs the pair to the control room.
She swears revenge on Romio for everything she has done.
Meanwhile, Misa
and Rumiya are knocked for six when Romio returns a magical attack.
Romio boasts that she still has a little surprise in store for Sammy...
Sammy
and Ryo-ohki reach the core of the NT system to discover that it is
protected by a powerful magical barrier. Sammy summons up all her magical
energy to pierce the shield, and successfully dispels it. However, the
effort of doing so has used up all her magical energy, and her baton
goes dead! Not to be beaten, she batters the NT system core with her
wand, but it doesn't make a scratch. She is about to give up when Ryo-ohki
offers some encouragement. They grab the baton together and pound on
the core. Sammy's baton cracks under the punishment, but they managed
to shatter the core. The stored-up magical energy bursts free and spreads
across the surface of Juraihelm, restoring the planet's inhabitants
to their former selves.
Sammy and Ryo-ohki
return to the ship's bridge to find Romio waiting for them. She tells
them that although they have destroyed her NT system, there is still
enough charge left in her magical cannons to wipe out the Earth. As
Romio prepares the cannon to deal a finishing blast to the Earth, Sammy
and Misa teleport themselves in front of the cannon's muzzle. 
Magical
wands held aloft, they brace themselves for the blast. The cannon fires,
but Sammy and Misa's magical shield disperses the shot. Romio is speechless.
Sammy realises that all the inhabitants of Earth and Juraihelm were
praying for them both, and the power of their wishes helped them succeed.
Sammy and Misa raise the magical baton and chant their final spell,
the Pretty Sexy Final Coquettish Bomber. Before the spell hits, the
furious Ramia charges onto the bridge and grabs Romio in a headlock,
carrying her off into the distance. The wave of magic from the Final
Coquettish Bomber spell strikes Romio's battleship, wiping it out completely,
before hitting Juraihelm itself. Sammy's baton, damaged in the attack
on the NT system core, begins to break apart under the force of the
magic flowing through it. Just as it gives way completely, the wave
of magical energy floods out across the solar system, restoring Juraihelm
to its former glory and Earth to its correct orbit. Both planets are
saved, but there is no sign of Sammy or Misa.
Far from Earth,
Sasami and Misao drift in a magical field. The recoil from their final
spell sent them hurtling into deep space, and with the power from the
shattered remains of Sammy's baton dwindling, it is only a matter of
time before their magical field gives out. Sasami apologises to Misao
for getting her involved, but Misao tells her she is glad she could
help everyone. Sasami realises that her best friend's dream of becoming
a concert pianist will never come true now, but Misao decides to give
Sasami her last performance. She sings a sweet ballad to their friendship
as they drift through space together.
As
Misao's song ends, Sasami spots a bright light approaching. Tsunami,
Ramia, Ryo-ohki and Rumiya have found them, and have led Washu and Ginji,
aboard their hastily-repaired rocket, to them. Sasami invites Ryo-ohki
back home for a celebratory dinner, but he has some bad news - he cannot
go back to Earth with her. It has been decided that Juraihelm will remain
in a separate dimension until the two societies are more capable of
understanding each other, but he promises to come and visit her when
that day comes. Even Rumiya finally tries to confess his feelings for
Misao, though it still takes a shove from his sister to get him to plant
a kiss on her cheek! Finally, they part company, and Sammy watches her
dear friends leave as she and Misao head back to Earth.
Several
months later, Sasami's life is returning to normal. In the intervening
weeks, Tsunami finally had her coronation, and negotiations between
Earth and Juraihelm's governments started. The people of Earth have
begun to learn to use magic powers, and the day that Juraihelm can re-enter
normal space is fast approaching. On the last day of school, Sasami
is surprised when Ryo-ohki suddenly appears. However, this is not his
promised visit - the services of Pretty Sammy are needed once more,
this time to bring peace to Mars! Tsunami appears and presents her with
a brand new magical baton. At long last the entire class realise that
Sasami and Pretty Sammy are one and the same. Once again, Sasami raises
her baton and transforms into Pretty Sammy.
On Mars, the Martians
are planning an invasion, their armies led by none other than Romio,
alive and well and still bent on destroying Earth! Luckily, Pretty Sammy
and Pixy Misa are on the case...
