Enya Kurukuru

Ryotaro Wada, a high school boy who easily falls ill, has been sneezing repeatedly in the recent harsh cold. According to his father, this cold is similar to the cold he felt when he encountered the Yuki-onna (snow woman). His father apparently encountered the Yuki-onna a long time ago. On this day, which is said to be similar to that cold, a strange young man suddenly visits Ryotaro's house. He claims to be the son of the Yuki-onna who saved Ryotaro's father, and has come to have a promise fulfilled—

(Source: Mag Garden, translated)