Story
Some people revel and play in the rain; others dread it and hide at the first drop. For high school student Takao, a summer shower is a source of artistic inspiration… but when he skips school in order to sketch in a rainy garden, Takao finds an even greater muse in Yukino, an older woman who seems adrift in the world. Despite the difference in their ages and lives, they strike up a comfortable relationship that slowly evolves as they randomly meet in the same garden whenever it rains.
Synopsis via AniList (English).