Otori Cave is an optional dungeon in Megadimension Neptunia VII found by scouting in the Hyper Dimension. This dungeon has appeared in previous games such as Hyperdimension Neptunia Victory and its remake. It costs 1000 credits to build a route to it.
The following items can be found in the dungeon. Items in the treasure chest can only be obtained once. Numbers are marked on the map to denote those treasure chests.
Destructible Object Items
1) P. SP Charger x1
1) Japanese Taste Lv.5 x1 Defeat all deployed enemies