[Leadership Developement] Tae Yoon grew up in a Christian family. He started serving as a youth teacher for 7 years before he became a youth pastor. Ever since he became a youth pastor, he has been seeking God’s wisdom to solve the problem that the majority of teens from youth groups stop going to church once they go to college. After many years of searching and trying many ministry models, he has found the Shepherdship Ministry (House church) model. With great success, fighting the bad statistics, he has been training and teaching many pastors and church leaders how to use the ministry model effectively at their churches. At Calvary UMC, he is serving as a director in church leadership, training and mentoring brothers and sisters in Christ as well as installing the shepherdship ministry at the church. He is also currently overseen all church activity while Pastor Justin Ryu is taking his sabbatical leave until February 2026.  

[Youth Ministry] Nathanael Yoon grew up in a Christian family. He started attending Calvary UMC with his father, Tae Yoon, who serves in leadership development.  

[Children Ministry] Mira Cho graduated from the Department of Theology at Nazarene University in 1993. She further pursued her studies and completed her Master of Arts at the American Baptist Theological Seminary in 1999. Mira served in full-time ministry from 2000 to 2012. Currently, she is the Children’s Ministry (CM) Director, where she continues to make significant contributions to her community through her dedicated service and leadership.