Mark Tuan is a guardian angel, an angel that guides ones who are deemed fit to be angels ascend the Gateway to Heaven.  He thought he had seen it all, from years of experience. Appearing in their lives since they reached their teens, growing into adulthood, watching them obtain their first job, start a family, and finally, sitting by their sides at their deathbeds. One job done. However, Han Mina was a special case. She was one of those who tears up at the mere