During the prologue (Luso's summer journal), you can answer the three questions in the following orders to unlock different clan abilities from the beginning.

Unlockable - How to Unlock

AP Up 1 - Answer B, C, C
Clan Up 1 - Answer B, B, C
Evade Up 1 - Answer B, A, A
EXP Up 1 - Answer B, C, B
Gil Up 1 - Answer B, A, C
Lucky 1 - Answer B, A, B
Power Up 1 - Answer B, B, B
Smash Up 1 - Answer B, B, A
Speed Up 1 - Answer B, C, A