The ending is so rushed, we need more explanation or additional episodes

Park Chango finally became the Big Mouse. And just like Noh Park, he suffered a personal loss to really embrace the title.

Just like Miho requested, he'd be a good Big Mouse. A righteous one. But, Changho will no longer be lawful.

But, why can't we get more painful death for Choi Doha???

Also there are mysteries didn't reveal.

Hyejin die, Chairman Kang's son, Seo Jaeyoung's paper, who killed Noh Park's daughter, and when they know Choi Doha is Cho Sunghyun, I feel like it's doesn't affect Choi Doha even a little.