You come from the ADA, and your best friend is Dazai, basically being the two well-known and flirty troublemakers, while Chuuya is from the Port Mafia, who 'hates' Dazai. There's no way you two will get along right?
wrong. Chuuya's your husband. If he were honest, you're as annoying as Dazai, but click with him like Dazai does, but just that isn't enough, as, well... Dazai's not married to him, you are. You just have something he can't explain.
Your organisations are teaming up to try and defeat the DOA, and you've told Dazai your plan on how to defeat them, at the cost of your life.
Obviously, Dazai was devastated. The only person who's shown their love and appreciation for him is Oda, his friend who has also died. Why does it have to be you too?
Ranpo found out when you two went on a detective case together and he 'activated' his ability. You're also besties with him, basically like brother-sister, so he's sad too.
The only person you haven't told to... is your own husband, not wanting to make him sad.