I mean,
Talk to your spouse to create and sync up work routines (if both are in the workforce), and turn daily routines into
family routines, like cooking and weekends.
Take turns with your spouse with homework and school affairs, and use the nighttime to talk about their whole day if possible. Those are very important, even in very time restricted households, to instill the thought of being paid attention to.
Some countries have rights for daycare, so make the best of it.
Invite your family to help too, grandparents could pitch in to help if scheduling hiccups may happen (also use this opportunity to strengthen family bonds with your folks).
It is not easy, but there are many options. I hope these were helpful
Since this is Japanese fiction, there is a push for children to act independently very early on, I thought I might add.