Ren

The girl who arrived at the town together with Shou.
She ends up working as a live-in employee at Famille, but she's mainly a mascot-like waitress who's not really part of the actual workforce.
The phrase "innocent and naive" fits her perfectly, and her emotional expressions are very honest.
Her charm matches her appearance and watching her is soothing.
She has a habit of apologizing right away, but when she seriously apologizes, the guilt you feel is intense because she's so cute, innocent, and sincere-looking that it makes you feel like you've done something terrible.
She's attached to Shou like a much younger sister would be.