Darkness Eye, Summon Demon Spirit!

Merlin flew into the air and extended a finger. A pulsating rune appeared on his forehead – it was the Runic Heartprint! Merlin had not used it for a long time. After all, it was no longer of much use to Merlin lately. Nonetheless, it was still able to isolate their force and prevent their movements from being revealed.

"Runic Heartprint, go!"

One by one the runes were released by Merlin through the power of the Runic Heartprint. This was a Runic Magic Circle that was built especially for concealment, and it was one of the most effective ones. It was just that it required too much Mind Power, so Merlin had not dared to use it in the past. However, his Mind Power had improved considerably since then, and he could set it up as he wished without being affected.

"Swish swish swish."