The summoning of a Livlaster has a distinct light effect. It is shown that even behind cover, you can see the glare.
Then at the fighting ring, Teppei is without the Livlaster when entering, but after Amara's entrance, Tepei is chastised by Daichi to hide it and "this is not the place to use that" stuff.
How could he summon the Livlaster (offscreen) without anyone in the audience noticing?
