Responses
He's truly silent...you can't get more silent then this:
http://www.mangago.zone/read-manga/silent_lover/
http://www.mangago.zone/read-manga/negative_kun_to_positive_kun/
http://www.mangago.zone/read-manga/deawanakereba_yo_katta_no/
http://www.mangago.zone/read-manga/hoshi_to_harinezumi/
http://www.mangago.zone/read-manga/motekei_ouji_no_renai_command/
http://www.mangago.zone/read-manga/isso_koe_ga_nakattara/
My list
http://www.mangago.zone/home/mangalist/603621/?filter=&page=1

Silent-type ukes?