In Jodo Shinshu Sect, however, Nanananoka Buddhist memorial service (Shijukunichi (49 days)) is held even when the chuin is over three months because it denies superstitions based on a pun, and so on.
しかし、浄土真宗では、語呂合わせなどによる迷信を否定する為、三ヶ月に跨っても、七七日（なななのか）法要（四十九日）まで行う。