seme*
well almost all of the other works by the same author of "Uchi No Tenshi Ga Kemono Deshita" have smaller semes, but I especially recommend:
http://www.mangago.zone/read-manga/reverse/
If you haven't read it already.
Also other recommendations:
http://www.mangago.zone/read-manga/koitomo_/
(First part is in "Katekyo" ch15)
http://www.mangago.zone/read-manga/otona_keikenchi/
http://www.mangago.zone/read-manga/best_ending/
http://www.mangago.zone/read-manga/stay_gold_koi_no_lesson_a_to_z/
Kawaii Akuma. It's rather well-known, though.
Can someone give me a yaoi manga with a smaller seem or a guy who looks sweet but really he's not. Something similar to Uchi No Tenshi Ga Kemono Deshita.
Thank you~