a couple where one of them kept calling the other "robo-kun" because he consistently had a straight face and didn't show any emotions
http://www.mangago.me/read-manga/fuuzokugurui_desu_ga_toshishita_danshi_ni_kokuraremashita/
this is the one ! thank u so much *__*
a couple where one of them kept calling the other "robo-kun" because he consistently had a straight face and didn't show any emotions