Mercy is from Butuan City, Agusan Del Norte. She was first assigned in Western Subanen tribe in Sominot, Zamboanga Del Sur. She ministered among this people group from year 1993 to 1999. From year 2000 until today, she is assigned to the Tigwa-Langilan Manobo tribe in Bukidnon, Mindanao. Her ministry among the Manobo children focuses in teaching them the way of the Lord at an early age.