I am sure the author is "Minase Masara". I am not sure about the manga though
below is one of her works
http://www.mangago.me/read-manga/aishuu/
Maybe this one because the hair colors match.
http://www.mangago.me/read-manga/toiki_yori_mo_yasashii/
I think it’s this one. Either way, it’s obviously Minase Masara. I haven’t read her stuff in a long time. Time to re-Read! Thank you both! (●'◡'●)ﾉ
No problem (⌒▽⌒)
http://www.mangago.me/read-manga/uchi_no_tantei_shirimasen_ka/an/uchi-no-tantei-shirimasen-ka--chapter-1.html/37/