Talk:Kotaro Kashima/@comment-74.105.169.103-20180620223536/@comment-130.105.52.198-20200727160249

I believe he is 2-3 years old. In chapter 81, Ryuu showed Kota a photo album of his (ryuu) back when he was a toddler and told him that he's at the same age with Kota in those pictures. There was a little description of his age at the cover of the photo book that's where I knew lol.