Responses
Her weight is not at all worrying her nor the other characters. Apart from the start when she was thought to have lost some because she was stressed from the sudden summoning.
After that it's not about her worrying for her weight but rather her annoyance at the descriptions given by her own skill. Plus I don't think they even mention that she's chubby apart from the Rina herself and her Appraisal skill.
We've actually gone to the point where Rina is actually the one teasing the others that they'll gain weight if they keep eating what she cooks.
its probably been talked to death but can i just say worrying about her weight is strange in a manga all about food?? its not even commenting on how to manage your diet so idk. she loves to cook and she likes to eat has ruined me. i think about food relationships all the time bruh