While he was becoming a bit disillusioned with his group and not being able to provide much for his family, Zia simply tells Edgin that so long as he was with them, that was enough for her.
Edgin honestly moved the board enough that they were about to grant him and Holga a pardon and release them. Pity they didn't listen and wait 30 more seconds.
Coupled with their genuine horror and concern every time poor Jarnathan gets brutalized. No resentment from Edgin’s previous Jarnathan fixation or exhaustion from the repeated humiliations, just genuine sympathy for how much their co-councilor gets subjugated to.
Kira genuinely enjoyed spending whatever time she could with her family, even when it was helping them in pulling off heists.
During his backstory, while celebrating in a bar, Holga is teaching Kira how to throw punches in the background. Holding up her hands like boxing gloves and gleefully cheering on her kid who's enjoying the lesson.
As they execute their first heist, Edgin grabs multiple baubles to be pawned off, while Holga nabs a necklace she shows an interest in. She ends up gifting that necklace to Kira, likely wanting her surrogate daughter to have something nice for once. To this day, Kira continues to wear this necklace.
Edgin pausing as he stares back at Holga being time-frozen and hesitating. He clearly doesn't want to leave her behind, but he also doesn't want to be caught.
Then when he trips and realizes he won't escape the spell, he turns to Forge and begs for him to look after his daughter. Even in perilous situation like this, he's still thinking of his daughter first and foremost.
When Kira sees Edgin and Holga, she immediately makes a dash towards Holga and gives her surrogate mother a hug. Holga warmly returns it and affectionately calls Kira "bug".
The relationship between Edgin and Holga is a very heartwarming one; the claim Edgin makes at the beginning of the film of the two being Like Brother and Sister is shown to be absolutely accurate. For all the sniping and bickering they pull against each other, they truly and platonically love each other. A few specific examples:
Edgin is shown to be legitimately concerned with Holga's desire to see her ex-husband, saying such lines as "Why are you doing this to yourself?" This concern is completely honest. In the end, he still allows the party to take a stop and let her try.
After Holga's attempt at closure with her ex-husband leaves her understandably hurt and sad, Edgin starts singing a happy little traveling song. She spends several seconds with an "I really want to hate you" smile before starting to sing right along, her spirits considerably lifted. Doubly so if you interpret the scene as him checking it's okay with a quick pause then using the music to cast the spell calm emotions to help her get past it.
This culminates in her death and resurrection scene. She dies in battle, stabbed by a Red Wizard's Blade, which doesn't allow for normal Resurrection spells to work, and Edgin, realizing that Holga was the mom Kira grew up with and was the family they needed, uses the Tablet of Awakening that was intended to bring his wife back to rezz her instead. Her response is a shocked "Don't tell me you wasted that thing on me!" before smiling in the group hug.
Edgin's faith in Simon is more legit than it initially appears to be. As he explains, for all his failures when he thinks, in a clutch, Simon is capable of truly amazing things. This talk not only helps Simon to attune to the Helm, but also apparently leads to a major level-up and possible class upgrade, leading to Simon becoming a truly powerful Sorcerer.
Edgin’s pride in Simon when this upgrade happens deserves a mention. Edgin ends up being a surprisingly paternal figure for Simon, and his unwavering belief in Simon’s potential could fill up its own page.
What is it that finally gives Simon the strength to conquer the trial of the helmet? People are counting on him to do this and he doesn't have time to be bogged down by anything else.
Xenk's unwavering faith in Edgin's goodness. He entrusts him with a powerful magical artifact and trusts him to distribute Forge's wealth to the city. His trust is well-placed.
And Edgin, his antipathy towards Thayans notwithstanding, comes to trust Xenk after being saved from the jaws of Themberchaud by the Paladin, awkwardly agreeing that he would have done the same for him if he was the one falling into the dragon's mouth. And in spite of still lingering bitterness, graciously parts with the Thayan warrior with a handshake of respect and gratitude.
During the High Sun Games, Holga does the most in saving her separated party members. From pulling Doric's arm out of the gelatinous cube and yanking Edgin out of the path of the Displacer Beast at the last moment.
Doric returns the favor to Holga by pulling her out of the gelatinous cube they jumped into to escape the Displacer Beast.
Holga throws a potato at Forge's face as he's holding Kira hostage. As the group get her to the boat, Holga glares at Forge and says, "Nobody hurts my bug."
When Edgin and company are sailing away with their scored treasure, they notice Sofina putting her plan into action. It takes Edgin less than 30 seconds to succumb to his conscience and turn the ship around, with zero objection from the rest of the party. They also presumably gave no argument against Edgin's plan to sacrifice the treasure to lure the townspeople away from the Beckoning Death, fulfilling his promise to Xenk in the process.
As the stone dragon goes to attack Holga who's pressed against a wall, Edgin quickly runs over and shoves her out of the way.
After Holga dies and Edgin is agonizing over whether or not to use the Tablet of Awakening on her instead, a dragonfly lands on him. Zia, Edgin's late wife, has been associated with dragonflies the whole movie; originating from a moment when Edgin fails to capture a dragonfly in their house and Zia simply opened a window to let it escape while saying "You just have to let it go." With this in mind, the dragonfly comes across as Zia giving her blessing for Edgin to let her go for good and resurrect Kira's mother figure instead.
Given the quite interventionalist nature of gods in the setting and that gods provide afterlives it could literally be whatever god Zia worshipped allowing her to do so.
Speaking of Zia, she was able to hide the infant Kira so the Red Wizards wouldn't be able to find and kill the child as well. Zia then uses the last of her strength to point to Edgin where Kira was.
Doric and Simon’s relationship is quite sweet once Simon gains some levels of self-confidence. When seeing or even hearing of Simon’s greater feats, Doric is vocally impressed, and by the third act is visibly taken with his advances. Despite playing it off, she’s genuinely pleased when he suggests courting her again by the end of the film.
This exchange between Doric and Edgin at the end of the film.
Edgin: Oh that's right, you don't like humans, do you? Doric: Some are okay. Beat Doric: What about you? Going back to the Harpers? Be with your people? Edgin:I'm with my people.
