Responses
Sorry following
looks like illustration by Hasukawa Ai, most likely from novel
It's a novel "Hanayaka na Junjou" written by Sakiya Haruhi and illustrated by Hotagawa Ai
Oh~ Thank you guys for helping me find it !!
Too bad I don't know much japanese to read it compleetely nor have enough money to buy the whole thing TwT
But I hope if anyone does they enjoy it very much (๑•ㅂ•)و✧
http://www.mangago.me/read-manga/sora_o_daite_oyasumi/mh/v01/c002/1/
First page, thank you.