The Deep Blue Sea
I
After Champa was destroyed on 1470, the Chinese government sent a censor Ch’en Chun to restore the King of Champa, however, he discovered that the Vietnamese soldiers had already occupied Champa and was blocking his entry, so he proceeded to Malacca and its ruler sent back envoys to china again to inform the Chinese that while going back to Malacca in 1469, the Vietnamese attacked them, castrating the young and enslaving them.
The Malaccans told that the Vietnamese sought to conquer Malacca in 1469 and the Vietnamese had already conquered Champa.
The Chinese Emperor scolded them, ordering the Malaccans to strike back with violent force if the Vietnamese attacked.
At this point in time the Cham could go to the Khmer empire to be refugees, however, the Muslim Cham tried to proselytize Islam to the Khmers causing them to gain the anger rejection of Khmers against the Muslim Cham on 1490, causing the Muslim refugees to leave the Khmer Empire, for Aceh.
It was said that the Chams who proselytized Islam are spreading a religion that will change the culture of the people of the Khmers and for that reason the Khmers became angry expelling the Muslim Chams from the Khmer Empire, causing the Chams to choose the destinations of Brunei(Borneo), Sulu, Palawan and Samtoy(Selurong).
The Malaccans vow revenge against the Vietnamese, as allies of China, however its enemy, the new fledgeling Aceh, whose King is a Cham refugee is no friend of China as well the pioneer old state in Sumatra in Islam, Sumudera Pasai Sultanate, both would remain subservient to Majapahit and would help the Kingdom against its rebellious subordinates like Demak and Brunei.
Meanwhile, the Japanese-Java trade to Nihon via Selurong was stalled for a decade due to the eruption of Mt. Pinatubo in the last decade of the 15th century, the Acehnese and Javanese muslim traders would proselytize their faith in the Port cities of Selurong, like Faru, Bigan, Tundun and Kalumpit.