Gene Shaft

Mika boards a space station orbiting the Earth, wondering about the S-Mission she has been assigned to.

A shockwave from the Ring damages the station, doomed to self-destruction. But they receive an SOS signal.

The destruction of the Ring is ordered and Mika volunteers to pilot the S-Unit, though it is imperfect.

Proof is found that there used to be an alien intelligence observing the Earth from the Ring.

A new Ring is detected but vanishes before it is intercepted. Then, one of the crew is found unconscious.

A space shuttle from the 21st century is found drifting. The 3 astronauts on board are also from old times.

Mika has problems with the Shaft while she is after a new Ring. Meanwhile, Hiroto starts to act strangely.

While serioulsy damaged, the Bilkis manages to escape anyway. But the crew is declared traitors by the IEO.

Mario takes command instead of Hiroto who is in a coma, and skillfully stops the war with the Earth Fleet.

Jean sends a virus that pulls the Bilkis in Jupiter gravity. Mario decides to talk to Jean in person.

Mir leaves the ship, pursued by Mika and Sofia. Meanwhile, a huge bug is found in the Shaf's program.

Hiroto awakes finally but the Bilkis has lost many crew members. Besides, Mir tries to achieve her revenge.

The final battle starts as each one holds their own feelings. Shaft against Shaft, Hiroto against Sergei…