What is the connection between manga hentai and workout?

Workout and black cartoon could potentially be related if it's a cartoon about characters getting fit or if the style of the cartoon is in black tones. But it's quite an unusual combination.

Hentai is a specific genre of manga that typically contains adult and explicit content. It's a subset of manga, but not all manga is hentai.

I'm not really sure there's a direct connection. Maybe in some very specific and unusual contexts they could be related, but generally, they seem quite separate.

I have no idea. This seems like an odd and unlikely combination.

I have no idea. There's no obvious connection between manga hentai and lychee. They are completely different things.

Hentai manga sometimes depicts objectification or demeaning of female characters, which could be seen as related to misogyny. But not all hentai manga is like that.

I have no idea. That's a really strange combination and I don't think there's a typical connection between them.

There's typically no direct connection. Hentai manga is a form of adult-oriented comics, while murder is a serious criminal act. They belong to completely different domains.

Well, it could be that 'hentai manga the promise' is about a promise made within a hentai-themed manga story. But without more context, it's hard to say for sure.