Responses
the first is http://www.mangago.me/read-manga/k_sensei_no_yajuu_na_aijou/
http://www.mangago.me/read-manga/k_sensei_no_yaban_na_renai/
they are correlated
and the second is: http://www.mangago.me/read-manga/daydream_nightmare/
the first is from this :
http://www.mangago.me/read-manga/k_sensei_no_yajuu_na_aijou/
or from the sequel
Pretty sure the second one is this, http://www.mangago.me/read-manga/daydream_nightmare/
What manga is this http://www.mangago.me/read-manga/ikumen_datte_koishimasu/mf/v01/c002/3/
And this
http://www.mangago.me/read-manga/ikumen_datte_koishimasu/mf/v01/c003/3/