Same here! I first read it when I was 15, and I'm now 29 (almost 30) and still going. I feel so old now hahaha.
And so true, the art didn't change much (maybe more clear but not "better" or "worse"). And also, the story is still kind of repetitive or "basic"? Like it's not growing like the characters are. There is still jealousy; they don't communicate much, so... Idk. Sometimes it's good (the brother finally knowing about the relationship arch) but sometimes is still the same, haha.
Hahaha, yeah, no kids either and not wanting them. My partner and i have not even considered it yet. In this economy? In this age? Nop. So, yeah, kind of get the "still feel like a teen" sometimes. It's like sometimes I feel like i'm playing adult haha.
Good to know I'm not the only one <3
(Also, i have a dog too, Coco, and it's the sun of my live <3)

I have done the math. I started reading this in 2005 when I was 14 years old. Misaki was 18 and Usami was 29. In the manga about 4 years have passed, and Misaki is 22 so Usami is 33. I am now 35. I’ve been reading this series for so long that I am now older than both the characters