I like Ann. A jaded professional adventurer that seems to have lost sight of what she used to enjoy about going out into the dungeon, who will likely rekindle that spark under the caring eye of Kachua.
Her ravenous eating when they stumbled upon her makes me think she'll eat Kachua out of house and home at this home dinner celebration that's coming up, but I look forward to seeing that side of her more, now that she's confessed to wanting to join up in full.
But the family grows, and Mom has one more person to help, and to be helped by, in her journey. Ann's former rank will likely factor into future interactions and possibly even conflicts, like if she runs into former party members that she may or may not have a sour history with. But, this really does feel like a "Protagonist helps everyone" sort of title, so in that light I think Ann makes a wonderful addition in showcasing how it's important to never lose that sense of wonder and desire for fun in life, no matter how old or powerful you get.
Thanks for the TL work. Looking forward to more.