Count: 0 — Note that no Japanese gods start with the letter X in reliable, canonical sources. Using Hepburn romanization and consulting primary texts (Kojiki, Nihon Shoki), shrine lists, and the Encyclopedia of Shinto produces no deity names that begin with X. Interesting detail: this absence reflects Japanese phonology and writing, not an omission in scholarship.

Explain why this criterion yields no results. Japanese names are written in kana and kanji, and the Japanese syllabary has no native initial sound that corresponds to the Latin letter X. Hepburn romanization converts Japanese syllables to Latin letters in a way that never produces an initial X for native deity names. Major source collections and shrine records therefore list gods under syllables that begin with vowels or consonants represented by letters like A, K, S, T, etc., but not X.

Consider what to search for instead. Expect to find the letter X only in modern inventions, fictional characters, or foreign names transliterated into Japanese; exclude those when you want canonical Shinto and historical deities. Use Hepburn romanization or kana ordering for exhaustive alphabetical lists, consult Kojiki, Nihon Shoki, shrine pages, and the Encyclopedia of Shinto, and expand your search to nearby letters or to kana-based indexes to find the deities you need.