Dazai and Chuuya kept their relationship a secret from their co-workers so it wouldn't be interfering with their work lives. So when they're at work they have to act formally and professionally, but when they're at home, they can act like normal couples/husbands.

Oh yeah, Odasaku is still alive and he's married to Ango, and Dazai is their adopted child :p

Odasaku is the owner of Sakunosuke Technologies, while Dazai is the CEO of it.

Since Dazai owns a famous company, he's a millionaire :')