Poor Ayu. It's really a hard decision to make for everyone who has pets. However, it's better this way than to let him suffer in a hospital. I'm sure Ayu will take good care of him and will do everything for him.
Although I didn't have to make the decision, I had a really hard time when my former dog died. She was 14 years old (same age as me back then), so I was lucky to keep her that long by my side. I still cherish our special moments together
