Everlast Tower

Floors 2 & 3: Head to the bottom-right corner, collect a Turbo Ether, and descend. On the first floor, open the chest for an Ancient Bow. Return upstairs and take the corridor stairs. On the third floor, find a Kiku-Ichimonji in the narrow corridor. Return to the second floor, go to the middle, then head to the top-left corner for an X-Potion before taking the stairs down.

Floors 1 & 2 (Hidden Path): On the visible path, go right to find an Earth Drum and stairs. Ignore the stairs and return to the secret passage. Head down, keeping left, to find a Turbo Ether. Return to the crossroads above, follow the corridor right to the bottom-left corner, and take the stairs up.

Anchorite of Bolts: On the second floor, cautiously head right to find the Anchorite of Bolts. Prepare for the Deux Ex summon by equipping Abate Lightning or Lightning Charms, and the Raikiri katana on your healer. After the encounter, go up from the Anchorite and take the stairs leading up.

Floors 3 & 4: On the third floor, follow the corridor to the junction. Go right to find an Elixir in the bottom-right corner. Return to the junction, go up, keeping right. In an alcove on the left is a blue locked chest. From the blue chest, head right then south to find stairs leading up.

Floor 4: Follow the path left to find a Dark Shield. Head right, keeping right, to find a Gold Hourglass. Go to the bottom-left corner to find stairs going down near the center and a chest with a Dragon Fang.

Floor 3 (Return): Descend the stairs. Follow the passageway down to find stairs leading back up.

Floor 4 (Final Ascent): Emerge on the fourth floor. Head left to find stairs leading to the final floor of Everlast Tower.