Yoru no Kata Sumi de Kimi to Ice wo

Haruka is an ordinary, tired working woman like any other. Her only pleasure is buying ice cream from a vending machine in the park she stops by on her way home from work. She also enjoys talking about silly things with a young man she always meets there, who she thinks is younger than her. Haruka works hard, looking forward to talking with him, whose name she doesn't even know, but one day she finds out that he has a crush on a woman - and before she knows it, she realizes that she has fallen in love with him too. A love story set in a park at night, where unrequited love crosses paths.

(Source: Kadokawa, translated)