A wedding, and a reunion after a long separation.
A sweet age-gap romance, reunited after a breakup. They meet again right at the beginning, with plenty of flashbacks. It won't be very long. The leads get back together, realize their feelings are mutual, and register their marriage on the seventh day after reuniting (or maybe the third).
Mostly everyday life. The blurb may change later, but the premise should stay the same.
Theme: Love makes people better