I need help pls

I read a manhwa a few weeks ago, and I lost it. I can't remember the title, but it starts with MC's mom dying. She had left him with his grandma when he was young, and he never saw her again till her funeral. At her funeral, a ton of powerful people came to the funeral with their children to pay respect, and that when he discovered she was their daycare principal, he ended up taking over the position, not knowing the parents and children are like spirits/ gods from another world.