Responses
Leto is downright god tier, so although Ein isn't particularly my type, he's still good looking enough that beside Leto, they are WAY up there. Definitely better than the main couple in this manhwa, and beyond many MANY others. If you haven't already, read Tale of the Yellow Dragon. They're a super hot couple too. I also claimed something I'd read in the past had the hottest first kiss I'd ever seen too, so I'll let you know if I ever find which manga that was. But overall, you're not wrong. I may not agree there the hottest, but they're most certainly up there!
For me I think they are the most attractive couple ever in BL history, they are so full of charisma(づ￣ ³￣)づ