Dad, We Meet Again? Episode 16

This is a moment of relaxation, but Sei is focused on improving the Star Build Strike. When Sei refuses to let him help with the work, Reiji heads into town to prove that he too can build Gunpla. As Reiji picks through the Gunpla in a hobby store, a bearded man greets him. The man also drags in Aila, who happens to be passing by, and forcibly subjects them to a Gunpla lecture. Though his teaching methods are Spartan, the Gunpla they build following his advice is better than anyone would have expected. Reiji promptly takes his assembled Gunpla into battle, but the Gunpla that appears as his opponent looks just like a customized Gunpla that previously attacked him and Sei!