Trap (more or less)
http://www.mangago.me/read-manga/hito_ni_ienai_aidagara_yukimura/
http://www.mangago.me/read-manga/hokenshitsu_no_target/
http://www.mangago.me/read-manga/shitsuji_wa_oose_no_mama_ni/
http://www.mangago.me/read-manga/sensei_no_kokuhaku/
http://www.mangago.me/read-manga/kankei_wa_mada_lv_1/
http://www.mangago.me/read-manga/dear_my_mister/
http://www.mangago.me/read-manga/hinyari_rouka_mangekyou/
http://www.mangago.me/read-manga/chotto_tobashisugi/
one more (=・ω・=)
http://www.mangago.me/read-manga/17_sai_no_hisoka_na_yokujou/
http://www.mangago.me/read-manga/ousama_ni_kiss/
http://www.mangago.me/read-manga/kiken_na_hokeni_counselor/
http://www.mangago.me/read-manga/kibun_wa_joujou/mf/v01/c005/3/
http://www.mangago.me/read-manga/fudanshi_kun_no_honey_days/
http://www.mangago.me/read-manga/shitsuji_kyoushi_no_renai_jugyou/
Yaoi student teacher mangas where the teacher is in love with the student first, or makes the first move.