Hello, we are Julian and Karolina Tenzler from Germany. Julian has a PhD in mathematics and loves teaching. Karolina has a double diploma in mathematics and business administration, and has worked in the energy industry for several years.

In fact, we had everything you could wish for and prospects for great careers in our respective professional fields. But in 2017, our lives took a drastic turn when Jesus clearly called us to quit our jobs and go to Japan as missionaries.

Since 2020, we have been serving with our mission organization OMF International in Japan and are currently living on Hokkaido, the northernmost island of Japan. There we support Japanese Christians and help them to grow in their faith and as disciples of Jesus in order to reach their own communities and personal networks with the Good News.

Our passion is to work with students and to strengthen and train Japanese Christians. In addition, we are seeing the Holy Spirit leading us to the lonely, hurting and seeking in many other ways.

New Initiative: No Town on Hokkaido Without Prayer

In April 2025, we are launching a large-scale prayer initiative titled “No town on Hokkaido without prayer”. The aim of this initiative is to wrap the whole of Hokkaido in prayer so that there is also focused prayer for the lesser known and rural areas of this island. In several of Hokkaido’s towns and villages there is no longer a Christian witness, or there never has been. In many places, churches are struggling to survive due to a decline in members.

We wish for a spiritual revival on Hokkaido that reaches all of Japan. Because this requires prayer first and foremost, we are looking for people who will take on a prayer patronage for one of the 188 towns and villages on the island. This initiative is purely private and is not linked to us or to OMF. If Hokkaido is on your heart, follow this link for more information.