The Second Draco-Equestrian War is nearing its end, with the Draconian Army in full defeat. It's the finale, the Equestrians are to take back their major city occupied by the Draconians for the past 2 years. This is the 'Battle of Las Pegasus."

However, the Equestrian, in return, faced the toughest resistance from the Draconians. That's when the ERAF faced heavy losses due to an enemy Ace they once thought was extinguished after the 'Ghost 13's permanent retirement...

It was only known that this Draconian Ace's callsign is Checkmate.

Equestrian high ranks had no other choices, the once legendary 'Archangel' squadron had lost its most elite members, and they were at the edge of destruction...

At that point, further training inland is proven to have taken too long and the battlefront situation is critical. They turned their attention to the Mikiro Mercenaries.

In response, Mikiro sent their deadliest mercenary fighter pilot.