Operation Vega

When Rintaro Okabe reawakens his Hououin Kyouma persona, he begins to devise a plan that would let Mayuri Shiina and Suzuha travel to the past by preventing DURPA and other opposing factions from destroying the time machine.

Despite all the efforts of the Future Gadget Lab members, FB and Moeka Kiryu, the arrival of DURPA remains a world line convergence, and Okabe's plan in its current state would thus always result in failure.

Realising that they would never be able to succeed, Okabe, Daru and Maho Hiyajo come up with a new, but drastic possible solution. They send a D-RINE to the Daru in the past to prevent Amadeus Kurisu from ever being created.