This isn't really exactly like sign, but it's similar in terms of hearing X deaf. As far as I know there's no planned smut scenes, but the story is simple and easy to follow ^^
https://www.mangago.me/read-manga/chameleon_wa_tenohira_ni_koi_wo_suru/ reply
Try ‘All about lust’! Very different plot wise but the comedy and fluffiness are very similar. It’s one of my favourites along with sign from around 2016. reply
