http://www.mangago.zone/read-manga/yamada_to_shounen/
http://www.mangago.zone/read-manga/katsubou_no_manazashi/
http://www.mangago.zone/read-manga/yume_musubi_koi_musubi/
http://www.mangago.zone/read-manga/monster_master/
http://www.mangago.zone/read-manga/korotto_ochita/
http://www.mangago.zone/read-manga/harapeko_usagi_to_koisuru_ookami/
http://www.mangago.zone/read-manga/koori_ga_tokeru_no_o_matteru/
http://www.mangago.zone/read-manga/hana_wa_saku_ka/
http://www.mangago.zone/read-manga/kuroneko_wa_shippo_de_amaeru/
http://www.mangago.zone/read-manga/urahara_to_dilemma/
http://www.mangago.zone/read-manga/dou_imo_nara_nai/. Uke is the older guy.
http://www.mangago.zone/read-manga/papa_i_love_you/
http://www.mangago.zone/read-manga/sweet_life/
http://www.mangago.zone/read-manga/nekoka_kareshi_no_ayashikata/
http://www.mangago.zone/read-manga/nee_sensei/
http://www.mangago.zone/read-manga/sweep/
http://www.mangago.zone/read-manga/stalemate/. Uncle and nephew.
http://www.mangago.zone/read-manga/kikoeru/
http://www.mangago.zone/read-manga/young_bad_education/
That list is age gap. Not many where seme is divorced tho.
College students, but still students. Koishite Daddy and Tonari No Kare.
Oops. Not the second.
Divorced age gap:
http://www.mangago.zone/read-manga/shinshi_to_norainu/
http://www.mangago.zone/read-manga/kiken_na_otonarisan/
http://www.mangago.zone/read-manga/lotus_eater/
http://www.mangago.zone/read-manga/kawaii_hito_pure/
http://www.mangago.zone/read-manga/the_rain_in_montecarlo/
http://www.mangago.zone/read-manga/kare_otoko_ni_izumi_o/
http://www.mangago.zone/read-manga/ikujinashi_no_shiawase/
Age gap yaoi with divorced seme and young(still student)uke....Like miyagi and shinobu