hello kiki, been awhile.
they are not common so I do bookmark them through tag as I read along and i manage to collect a few. http://www.mangago.me/people/tag/49344/mysterious+seme/
The ones I have read fit perfectly, but a lot I haven't so it seems super promising. Thank you you're right not common, I love a touch of mystery to a seme/male lead.... And hiiii
btw don't get scared off a manga by my stars, you might like it haha. I rate differently from other people (￣∇￣")
Pretty much self explanatory. Sexy mysterious seme. Don't have any examples off the top of my head. But yeah, any recommendations would be appreciated