Hai~
http://www.mangago.zone/read-manga/eien_ni_owaranai/
(warning: this is messed up but the seme is younger)
enjoy~~
i thought you'd never ask. i have a list for it, but i'll link my favorites (just kidding they're all my favorites).
http://www.mangago.zone/read-manga/on_doorstep/
http://www.mangago.zone/read-manga/boku_no_omawarisan/
http://www.mangago.zone/read-manga/joou_to_shitateya/
http://www.mangago.zone/read-manga/mujaki_na_wanko_to_nekokaburi/
http://www.mangago.zone/read-manga/osananajimi_ga_do_m_de_tsundere_nan_desu_ga/
http://www.mangago.zone/read-manga/himono_tokodoki_shanairen_ai/
http://www.mangago.zone/read-manga/koi_wo_suru_tsumori_wa_nakatta/?KCYT
http://www.mangago.zone/read-manga/kore_mo_shigoto_desu/
http://www.mangago.zone/read-manga/kinou_wa_otanosimi_deshitane/
http://www.mangago.zone/read-manga/soshite_boku_wa_koi_wo_shiru/
http://www.mangago.zone/read-manga/encirclement_love/
http://www.mangago.zone/read-manga/gohoubi_ha_shitsuke_no_ato/
http://www.mangago.zone/read-manga/ore_no_kirai_na_senpai/
http://www.mangago.zone/read-manga/hanagaya_eigyousho_no_kare/
http://www.mangago.zone/read-manga/yowamushi_danshi_renai_hajimemasu/
http://www.mangago.zone/read-manga/be_my_baby_haruyama_moto/
http://www.mangago.zone/read-manga/ayashi_no_hakoniwa_ni_ukabu_tsuki/
http://www.mangago.zone/read-manga/yukidoke_no_koi/
http://www.mangago.zone/read-manga/kitto_oujisama_ga_nante/
http://www.mangago.zone/read-manga/young_good_boyfriend/
need some yaois with younger seme ! (●'◡'●)ノ