Present Time, The cadets who are 19yo were fighting off the Vectors with their Zeniths the pilots were struggling a bit since it was an armada of Vectors appearred so its reasonable they were struggling until an unindentified flying objects flew in and blitz the armada slowly, the pilots and the base saw this

Izuku📗: "Wow...who is that!?" The Pilot of Zenith: S-01 said in shocked whilst pilotting his Mecha gripping its Star Buster slashing the Vector in half

Tokoyami 🐦‍⬛: "Incredible...such power" The Pilot of Zenith: D-06 said in admiration whilst cutting down and binding Vectors with his mecha Dawn Splitter in hand

Nezu🐭: "What's going on, are you on our side!?" The Chimera Director of the Sky Base said with a shocked yet serious expression whilst speaking to the unregister pilot