I am Takashi Okada. I am a senior research scientist of iTHEMS from this spring. Previously, I was a postdoc researcher of Mochizuki Theoretical Biology Laboratory (April 2014 to March 2018). My original background is theoretical physics, and, before I came to Mochizuki Laboratory, I researched on particle physics and super string theory. Now, my main research subject is theoretical biology, and, especially, I am interested in biological networks, such as gene regulatory networks, metabolic networks, and signal transduction networks. I would like to understand how today’s biological networks arise through evolutionary processes. I think that iTHEMS is the best environment to study theoretical biology because life science is a very broad field that involves mathematics, physics, chemistry, statistics, and so on. I would like to learn a lot through interaction with iTHEMS members. Also, I am very happy if we can collaborate with each other.