Wow. Finally some truth. A lot of same sex couples (especially guys) have very large age gap. Also a lot of them, at least in my area, are inter-racial. First of all, love is love. Secondly, when there is a supply-demand situation, you don't get to pick "I must find someone who is within 5 years of my age". It is not unusual that one is expected to be the widow/widower. It is what it is. Wish there are more manga like this. I am totally down for a 50 & 20 years old couple. Not sure about 40-10 because that is onee-loli area. Nothing wrong, just not my prefer set up.