Light & Shadow
While Ernie and the engineers try to find a way to fix the Telestale's high mana consumption, Ernie also builds weapons for the Silhouette Gears including an automatic crossbow. Addy and Kid reports to their father about the Telestale's performance which he in turn informs Marquis Dixgard. Under Marquis Dixgard orders, the Order of the Scarlet Rabbit has three Telestale Silhouette Knight brought to Fort Casadesus where the Marquis will inspect and test the Knights personally.
Aired 23/07/2017EP 4 - Light & Shadow

Knight's & Magic
A Japanese mecha otaku dies in a car accident and his soul is reincarnated into another world as Ernesti Echevarria. Eru inherits memories and interests from his previous life, and aims to be a pilot of a Silhouette Knight, a large humanoid weapon that really exists in his world.
(Source: Anime News Network)