
there's a bunch of small chapters that dont really add enormously to the plot that they didnt animate, if you want to read them and dont mind taking a bit longer, but most of the development starts from the fireworks scene so I kinda recommend going from there since ull miss more than before if u start off later than that point.
This is just my opinion tho, i have bad memory so i'll let u have a second opinion

Personally I read the manga from where season 1 left off cause at that time season 2 didn't air yet. You can read from where season 2 left off but they tend to skip some chapters here and there. I still haven't read the 1st few volumes but I know there is a chapter for Valentine's day taht was supposed to happen in season 1 but they skipped over it. Those are minor things but if you wanna read everything then I suggest you start from the beginning
ive only watched the anime so i dont know ab their current relationship progression but i saw spoilers from the recent chapters nd WHAT THE HELL HOW ARE THEY THE SAME SHY PEOPLE.. do u guys rec reading the manga from where the anime left off?