Wait when did they reveal the bloodline secret to haruto?
When they bathed together as children.
Edit: Found it.
https://mangadex.org/chapter/d8d48562-d4b9-4b1c-a97a-c076aad69a16/10
Edit 2: Wait, nevermind. I read that as "When was the crest revealed to Char?" I got confused after reading my own response to a previous comment.
Edit 3: If you mean "When did Haruto become aware he's a member of the royal family?" Then right from the start, since he was conscious as a baby.
Otherwise, I'm not sure what you mean by "they reveal the secret bloodline". Who are "they" and what "secret bloodline" is there other than the royal one?
I think this is the part where my brain went "This doesn't make complete sense, let me fix that for you by combining with what you've read seconds before.".
Edit 4: I officially can't read. It says "bloodline secret", not "secret bloodline". I give up. I'll attribute my wonkiness today to not being fully awake yet and forget this blunder.
