Ido Front (fan translation: Idofront), also known as the Forward Operating Base, is a research station located at the bottom of the 5th layer. It is the deepest a person can go and still survive the curse. It is the place where White Whistle Delvers begin their Last Dive.
Its main purpose is as a gateway into the 6th layer. Its center, the Altar of the Absolute Boundary, acts as an elevator through the Sea of Corpses, and it can only be activated by the sound of a White Whistle.
Long ago, Ido Front was originally the ruins of a former ritual site where preperations were made and the ritual was held. Since then, it has been transformed into Bondrewd's main base of operations. Here he conducts experiments in warding the curse.
It was here that Bondrewd brought Nanachi, Mitty and other children to act as his test subjects, and where Nanachi and Mitty were transformed into Narehate after ascending from the Miniature Garden of Dawn. It is also the place where Bondrewd raised Prushka as his adopted daughter before turning her into a cartridge.
- The cylindrical structure above the Ido Front is a pillar of frost.
- Based on a comment from Majikajya stating that Nanachi is a Narehate of the "old ritual site," it is possible that the rituals that took place at Ido Front long ago involved an individual receiving the blessing. How the blessing was achieved by the ancient people is unknown.
|Places||Abyss • Orth •Beolsk • Sereny • Jeseku • Grand Pier • Gate to the Netherworld • Belchero Orphanage • Wharf • Delver Guild HQ • Laffi's Shop • Caravan Fleet • Burial Tower • Seeker Camp • Nanachi's Hideout • Garden of the Flowers of Resilience • Ido Front • Miniature Garden Of Dawn • Altar of the Absolute Boundary • Ilblu • Poriyon's Workshop • Ilblu's Market of Value • Mepopohon's Inn • Narehate Restaurant • Doguupu • Belaf's House|
|Layers||1st Layer • 2nd Layer • 3rd Layer • 4th Layer • 5th Layer • 6th Layer • 7th Layer|