Everyone, no exception, poured every bit of spiritual energy into the barrier. The latter grew in golden light but then, strange yet beautiful patterns began to form. The color changed to ocean blue and everyone in the barrier could tell the barrier had some changes.
They were the best among the best, they knew the barrier's properties and attributes greatly modified to something more powerful and durable.
Looking at the one who did this, Haru and Yeanne were impressed. Their bad impression of Narukami decreased considerably.
Hikari did not form any expression whatsoever as she made sure the barrier had no flaw, she strengthened it too.
Aware of this, Haru and Yeanne follow suit. They did not want to be the burden. They all thought it was Narukami in a mask but this scene proved them wrong and taught them a rather valuable lesson.