Sophia Tan Lighthouse Control - Hexagon Crystal (소피아 탄 등대제어 육각정, Sopia Tan Deungdaejeeo Yuggagjeong) is one of many Lighthouse Techniques used by the FUG Elder Sophia Tan during the Battle of The Nest. Hexagon Crystal utilizes around 30 Lighthouses to form a massive spherical protective barrier. This barrier looks quite different from the ones generated by normal Lighthouses and it somewhat resembles Enna Core's Mystery Sphere, but with more complex geometry.[1]