Overview
Heterogeneous Unit is an A-grade development material that can replace missing enemy materials for Esper Ability upgrades. The number required depends on the rarity of the missing material.

"A substance with highly unstable special properties. You never know what it will become the next time you view it."
Basic Info
Field | Value |
|---|---|
Name | Heterogeneous Unit |
Grade | A-Grade |
Rarity | 4-Star |
Category | Development Material |
Item Type | Consumable |
Used For | Replacing missing enemy materials for Esper Ability development |
Material Substitution
When the required enemy materials and Anomaly Selection Boxes are exhausted, the upgrade screen can offer Heterogeneous Unit as a substitute for the missing Esper Ability materials. Check the displayed quantity before confirming, since the conversion depends on material rarity.
Tips
Keep a reserve for a missing enemy material that blocks an Esper Ability upgrade. Spinoffs and the Security Office Crispy Mouse Cookie exchange provide ways to obtain more.
Related Pages
Character Leveling: character development and upgrade planning.
Items: materials and consumables used across Hethereau.
Beginners Guide: early progression and resource priorities.