http://www.mangago.me/read-manga/katsubou_no_manazashi/tr/75675/page/
It should be Sakura Haiji's art...maybe this? http://www.mangago.me/read-manga/otona_ni_natte_mo/
http://www.mangago.me/read-manga/katsubou_no_manazashi/tr/75675/page/