http://www.mangago.me/read-manga/work_in/mh/v01/c004/2/
http://www.mangago.me/read-manga/ai_to_yokubou_wa_gakuen_de/
i think it's from Ai to Yokubou wa Gakuen de
Thank you!!!
http://www.mangago.me/read-manga/work_in/mh/v01/c004/2/