Ohenro-chan!

Otoha, a 10-year-old girl, is completely depressed after losing her beloved cat Yoruka. One day, in her dream, she meets the "cat god," who is said to be the beloved cat of Kobo Daishi. When Otoha prays to "bring Yoruka back to life," the "cat god" tells her to go and meet his disciples at the temples along the pilgrimage route... the elementary school girl's slightly mysterious pilgrimage journey begins.

(Source: Shonen Gahosha, translated)