I Don't Believe in God, But I'll Spam [God's Miracles] All Day Long ~ The Power of Faith No, This Is the Fruit of Effort and Verification

When 47-year-old single programmer Ritsu Hisahashi opens his eyes, he finds himself reincarnated as a boy named Mika in a poor village in another world. In a world where magic called [God's Miracles] exists, he leverages his knowledge from his previous life, his drive to take action, and his thirst for discovery-secretly training his magic alone, unnoticed by the adults... Eventually, a classic tale of growth about a boy who brings light to the kingdom!!