"My Boss said that although he’s the one in power, his father, that old geezer, is still the leader in name, so it’s best to obey the death order he gave."
"My Boss said that although getting engaged to the Vongola Rain Guardian is a bit of a sacrifice, it’s still better than being stuck with the terrifying Cloud Guardian, right? You have to stay positive."
"My Boss said that although the Rain Guardian looks like a naturally kind person, that’s just appearances. He’s actually a scumbag, the really dark kind."
"My Boss said that if the Rain Guardian tries to force himself on me, I have to fight back. But if the difference in strength is too great, then I should learn to enjoy it. Even if I bite my tongue bloody, I mustn’t let my resentment show."
"Did your Boss also say..."
"What? Mm..."
"You absolutely mustn’t tell the Rain Guardian any of this."
It’s really just the story of a cute girl who’s obsessed with her Boss, being forcibly turned into a Rain Guardian fan =v= The male lead is the adult Rain Guardian. The story covers the Ring Arc, is 1v1, and is guaranteed to have a happy ending >w