The Tetracyclic Towers are four mysterious towers in Liberl, dating back to before the Great Collapse. They each separately known as the Esmelas Tower, Amberl Tower, Sapphirl Tower and Carnelia Tower and each of them are named after the septium names of wind, earth, water and fire, respectively.
The four towers are spread throughout Liberl. These towers include:
|Esmelas Tower||Green||Wind||Rolent||Enforcer No. X: Bleublanc|
|Amberl Tower||Yellow||Earth||Bose||Enforcer No. XV: Renne|
|Sapphirl Tower||Blue||Water||Ruan||Enforcer No. VI: Luciola|
|Carnelia Tower||Red||Fire||Zeiss||Enforcer No. VIII: Walter|