My Frosty Coworker Is Only Sweet To Me summary:

Kotori Ogata has a complex about her chubby body. She is somehow obsessed with Soma-kun, a younger man who is said to be a salt at her workplace. The reason must be that one rainy day, she warmed him up when he was freezing in the cold by meddling with him. Since that day, Soma-kun has been too sweet to Kotori! He protected her from her sarcastic boss, held her hand because she was cold. He also says, "Everything is cute to me," and says sweet words to her...!A doting love story of the age difference between a chubby meddlesome girl and a hypothermic and salty junior!