Seme looks like his neck would break if you hug him too tight:
http://www.mangago.zone/read-manga/shishi_ni_hire/
Cherry blossoms after winter
Here U are
My darling signed in
Biting the tiger
The keystone romantic combination
(づ￣ ³￣)づ
fluff
http://www.mangago.zone/read-manga/suzutsuki_neko_wa_nyao_to_naku/
http://www.mangago.zone/read-manga/fuyushirazu_no_koi/
http://www.mangago.zone/read-manga/oh_my_assistant/
http://www.mangago.zone/read-manga/yamada_to_shounen/
http://www.mangago.zone/read-manga/katakoi_opera/
http://www.mangago.zone/read-manga/shoushin_otoko_ni_haru_no_arashi/
http://www.mangago.zone/read-manga/senpai_danjite_koidewa/
http://www.mangago.zone/read-manga/salad_days_tang_liuzang/
http://www.mangago.zone/read-manga/negative_kun_to_positive_kun/
http://www.mangago.zone/read-manga/otoko_yamome_mo_hana_ha_saku/
Don't get me wrong, rough tops are hot and all that but there's a special place in my heart for fluffy Semes. So far, the only ones that fit the description that I've read so far are Yohan from Sign and Seonho from Oh! My Assistant.
Anyone know where I can find more of these men?