
It's already quite some time since i feel satisfied with male lead character in school life setting shoujo manga. Most of time i found them either (kinda) annoying or (kinda) douchebag but kiyo just fine. He's serious and straighforward and have sharp tongue but didn't looked down to another people, definitely a proper cool ikemen type that deserve his popularity

At early chapters the stort was meh, generic shoujo plot. But it started getting better when the time-trip arc begin. Sadly the quality kinda declined toward ending and the enclosure was a bit anticlimax, but at least you got nice ending for everyone. Overall it's pretty good shoujo manga, not awesome but still good enough to be remembered
How old yuuichiou at that last chapter? Five? Six?
Damn, miyauchi face with kudou hair is such a killer. He will be sooo damn fine in the future
*yuuichirou
I think probably around 4? I mean he was barely walking when Ren visited and Ren was 6 that time. In the end Ren is 10 so yuuichi should be around 4 to 5
5 would seem closest, as I've never seen a newborn walk on their own, that's closer to a year give or take.