For whom does no prayer go unanswered according to Nichiren?

"One may ask why the results of these vows should be so long in appearing. And yet, though one might point at the earth and miss it, though one might bind up the sky, though the tides might cease to ebb and flow and the sun rise in the west, it could never come about that the prayers of the practitioner of the Lotus Sutra would go unanswered. If the bodhisattvas, the human and heavenly beings, the eight kinds of nonhuman beings, the two sages, the two heavenly deities, and the ten demon daughters would by some unlikely chance fail to appear and protect the practitioner of the Lotus Sutra, then above them they would be showing disdain for Shakyamuni and the other Buddhas, and below they would be guilty of deceiving the beings of the nine realms." - On Prayer

Nichiren teaches that no prayer goes unanswered for a practitioner of the Lotus Sutra. A practitioner of Ikedaism will not have their prayers answered. A believer in the Patriarchal Transmission Through Current Masters and in secret oral transmissions will not have his or her prayers answered. Lastly, those who practice interfaith at a time for the forceful practices will not have their wishes fulfilled, especially the Great Wish of spreading the Lotus Sutra throughout the world. Only a votary of the Lotus Sutra believing in the Transmission through the Scrolls of the Lotus Sutra (particularly the Gohonzon) will have their prayers answered.