Age gap. Bl
http://www.mangago.zone/read-manga/kirei_ni_shiteyo/
http://www.mangago.zone/read-manga/jounetsu_kakumei/
http://www.mangago.zone/read-manga/hatsukoi_no_tonari/
http://www.mangago.zone/read-manga/yamada_to_shounen/
http://www.mangago.zone/read-manga/oita_ga_sugiru_wa_koneko_chan/
http://www.mangago.zone/read-manga/almost_paradise/
http://www.mangago.zone/read-manga/suki_ni_nattara_dame_desu_ka/
http://www.mangago.zone/read-manga/how_sweet_is_a_sugar_daddy/?av=1
http://www.mangago.zone/read-manga/koi_ga_ochitara/
http://www.mangago.zone/read-manga/on_or_off/
http://www.mangago.zone/read-manga/lover_boy_lezhin/?av=3
http://www.mangago.zone/read-manga/kyou_mo_ashita_mo_asatte_mo/
http://www.mangago.zone/read-manga/2ban_me_no_alpha/
For more Age gap you can check out my list
http://www.mangago.zone/home/mangalist/607063/
age gap romance, i want some shoujo/seinen but yaoi/shounen ai is ok too