When two units like each other very very much, they gain stat boosts in battle. Supports have ranks, and the higher the rank, the stronger the boost.
When two units form a support, they both gain boosts in combat based on their Affinities. Supports increase the pair's Damage, damage taken (Resist), Hit, Avoid, critical hit rate (Crit), and critical hit avoid (Crit Avo). These boosts multiplied by x1 (C Rank), x2 (B Rank), x3 (A Rank), or x4 (S or A+ Rank). The boosts are then added together and rounded down. Units gain these boosts when they are within three spaces of each other. The following table shows the boost values by Affinity:
| Affinity/ Stat |
Fire | Thunder | Wind | Ice | Dark | Light | Anima |
|---|---|---|---|---|---|---|---|
| Damage | 0.5 | 0 | 0.5 | 0 | 0 | 0.5 | 0.5 |
| Resist | 0 | 0.5 | 0 | 0.5 | 0 | 0.5 | 0.5 |
| Hit | 2.5 | 0 | 2.5 | 2.5 | 2.5 | 2.5 | 0 |
| Avoid | 2.5 | 2.5 | 0 | 2.5 | 2.5 | 0 | 2.5 |
| Crit | 2.5 | 2.5 | 2.5 | 0 | 2.5 | 2.5 | 0 |
| Crit Avo | 0 | 2.5 | 2.5 | 2.5 | 2.5 | 0 | 2.5 |
Units may not have more than one S or A+ support. S rank denotes a romantic relationship while A+ rank denotes a platonic relationship.
Support pairs gain Support Points to gain Ranks. The following table lists what actions give points and how many they give:
| Action | Points Gained |
|---|---|
| Units are within 3 spaces of each other at the end of a turn | 1 |
| Units are within 3 spaces of each other after a round of combat | 1 |
| One partner interacts with the other. (i.e. Healing, Shoving, etc.) | 1 |
| Both units are alive at the end of the chapter | 3 |
| Base conversations where "participants grow closer" | 5 |
| Mid-chapter Talk conversations (not including recruitment conversations) | 2 |
When a support pair has gained enough support points, they rank up and a unique conversation between them unlocks. These conversations can be viewed in the base menu before combat of certain chapters.
Support pairs may be added/removed as more work is done with the game. Ranks in gray denote no scripted conversation for that rank yet. Pairs listed have at least one conversation in their chain fully scripted.
Please note there are unmarked spoilers for characters' backstories in these support conversations. Read at your own risk!