Thanks to @p5x-theories for showing me the video with the Persona screenshots, I'm able to get all of the base Passives for all characters.
I won't be going over specific Awareness Level Abilities, but I'll definitely do a detailed character analysis of their skills and such later.
Joker: At the end of the round, for every enemy on the field with lower than 50% HP, Joker gets one "Hot Air" stack. When the stack count reaches 3, Joker gets one extra turn.
Ryuji: At the beginning of the round, when Ryuji's HP is less than 20%, increase his attack power by 20%. If Hp is less than 50%, gain the ["Rebound"] effect, increasing the damage of his next active skill by 10%.
Morgana: Grants bonus to himself depending on how many allies are over 50% HP or under 50% HP. If at least 2 allies are over 50% HP, increases his Critical Hit Rate by 24%. If at least 2 allies are under 50% improves his healing.
Ann: When an enemy is hit by a fire skill, inflict foe with a fire stack. When the stack count reaches 7, Ann enters a ["Painstaking"] state, increasing her attack power by 35% for one round. She cannot enter the [Painstaking] state in the next round.
Yusuke: When taking damage, there is a 50% chance to counterattack, dealing Ice damage equal to 77.8% of Yusuke's attack(Not specified but I assume it uses his attack) to the attacking enemy.
Makoto: Using a skill or taking damage grants Makoto one [Tenacity] stack. Each stack increases her attack and defensive power by 3%. Has a max of 10 stacks.
Futaba: When an ally attacks an enemy's weakness, Futaba gains one [Clue] stack. Each stack of [Clue] increases the attack power of all allies by 5%, with a max stack of 5. When 5 stacks of [Clue] are reached, Futaba enters the [Analysis Complete] state, increasing the weakness damage of all allies by 10%, and restores all allies' HP by 20%.
Haru: Using skills reloads her ammo. Using her gun to attack an enemy who is under the effect of [Special Treatment]*, will deal additional Psy damage to all enemies while consuming one stack of [Special Treatment]. Damage dealt to enemies by consuming multiple stacks of [Special Treatment] is increased by:
100% of Haru's Attack Power * (1 + Current stacks of [Special Treatment] * 30.4%).
*[Special Treatment] is a status effect that can be applied to enemies via her Psy skill.
Akechi: At the end of his round, grant all allies the [Blessing] effect for 2 rounds. [Blessing] restores 1% of Max Health per round.
Closer: After using a skill to damage an enemy, there is a 30% chance to inflict the enemy with [Conductive]. At the beginning of the round, increase attack power by 10%/20%/30% (Changes depending on whether Closer is Level 1/50/70) for every remaining enemy on the field with [Conductive]. [Conductive lasts for 3 rounds.]
Cattle: Using his healing skill on an ally will grant them the [Star Fire I] buff. [Star Fire I] increases their attack power by 4% for one round, and at the end of the round becomes [Star Fire II], which increases allies' attack power by (Cattle's Attack Power/8)%.
Soy: When an ice skill is used on a foe, grant the foe a [Zero Degrees] debuff. Each stack of [Zero Degrees] decreases the foe's defense by 1%. Once the number of [Zero Degrees] stacks reaches 10, they will become an [Absolute Zero] debuff, which will decrease the foe's defense by 12%. [Absolute Zero] can be applied at a max of 1 stack, but through increasing Awareness, will go to a max of 2.
Also, his final Awareness level will increase the power of his Cold Tyrant skill by 10%/20%/30% and the Critical Damage of the skill by 20%/40%/60%, depending on if the foe he's attacking has 0/1/2 stacks of [Absolute Zero].
Leo: When using a skill that targets an ally, give that ally a [Justice] buff. If the target has a shield, they will gain another stack of [Justice]. Each stack of [Justice] increases that party member's damage by 15%, and goes away when said party member attacks. Can be applied at a max of 2 stacks, but through increasing Awareness, will go to a max of 3.
Mont: When Mont or an ally attacks, Mont gains one [Ice Crystal]. When Mont has 10 [Ice Crystals], after she attacks, she consumes them to do a critical hit physical attack on the foe she attacked last.
Yuki: At the beginning of the battle, grant one random ally a ["Benevolence Contact"] buff. At the end of the round, the affected companion gains 13.6% defense.
Seiji: When a skill is used, there is a 40% (45% at max Awareness) chance to gain a [Motivation] stack. Each stack increases his Attack Power by 3% and his Avoid Rate by 2%. This effect lasts for 2 turns and can have a max of 3 stacks, but through increasing Awareness, will go to a max of 5.
Kii: After Kii uses a skill, he gets a [Sacrifice] stack. While he has [Sacrifice], the fire damage of all his allies is increased by 3.5%(Yandex doesn't specify whether it increases for each stack but I assume it does), and using skills will cause Kii to lose 3% of his current health for 2 turns. [Sacrifice] has a max of 5 stacks, with the turn duration for each stack calculated independently.
Okyann: Using support skills causes Okyann to gain a varying number of [Beats] depending on the skill. At 4 [Beats], she will immediately use "Song and Dance" increasing all allies' attack and defense by 25%, and effect hit rate by 33% for one round.
Kotomo: At the beginning of the round, Kototmo gets a number of [Aoba] stacks, corresponding to the number of enemies on the field. Each stack of [Aoba] increases Effect Hit Rate by 5% and has a max of 3 stacks. At 3 stacks, Kotomo gains [Ye Ming Minor], which strengthens her skills..
Rin: After Rin uses a skill, all targeted foes gain one stack of [Forget Water]. Each stack of [Forget Water] decreases the target's defense power by 6% for 2 rounds and lasts for 3 rounds. If [Forget Water] reaches 3 stacks on any enemy, Rin enters the [Meng Po Soup] state. When using a skill while in the state, Rin will exit the [Meng Po Soup] state and gains a 10% chance of inflicting [Forget] on the main target of the skill. This state lasts for one round.
Please note that the names of the buffs are most likely very inaccurate, but i hope I got the actual effects right.