Note: each story has a different title which always starts with Reimu. Each part consists of 4 posts, except the first one has 6 posts.
Part 1: https://www.pixiv.net/en/artworks/69264940 "れいむのおちびちゃん (Reimu's little ones)"
Part 2: https://www.pixiv.net/en/artworks/70162508 "おちびちゃんゆっくりしていってね (Little ones, take it easy)"
Part 3: https://www.pixiv.net/en/artworks/71905472 "れいむとおにいさんはいのってるよ (Reimu and Mister is praying)"
Part 4: https://www.pixiv.net/en/artworks/72812406 "れいみゅゆっくりしてりゅよ (Reimyu is taking it easy)"