In this episode of The Phantom Navigator, we go deep into the real history and folklore behind Japan's ghost season: the Buddhist origin story of Obon and the realm of hungry ghosts, the terrifying taxonomy of yūrei (onryō, ubume, goryō, funayūrei), the legends everyone in Japan grows up on (Oiwa and the Yotsuya ghost story, Okiku the dish-counting ghost), modern Japanese urban legends like Kuchisake-onna (the Slit-Mouthed Woman) and Toire no Hanako-san, and the funeral and cemetery superstitions baked so deep into daily life most people don't realize they're doing them — why you never stick your chopsticks upright in rice, why hearses make people hide their thumbs, why the number four is avoided in hospitals and condolence money.

Then: the story of one woman, one ritual done too perfectly, and a ghost who never got the memo that the visit was supposed to end.

Ghosts. Superstition. Grief that won't file its paperwork. Welcome home.