Any BL with age gap where the seme is the younger one? It would be better if the manga had...

http://www.mangago.me/read-manga/home_tsuyuki_yuruko/
http://www.mangago.me/read-manga/otona_wo_komaraserun_ja_arimasen/ has just one chapter :(
http://www.mangago.me/read-manga/mujaki_na_wanko_to_nekokaburi/

http://www.mangago.me/read-manga/boku_no_omawarisan/
http://www.mangago.me/read-manga/koi_kamo_shirenai/
http://www.mangago.me/read-manga/young_bad_education/
http://www.mangago.me/read-manga/blue_blue_blue/

I'm replying late because first I read all the mangas and thank you both!! They absolutely made my day. Btw Blue blue blue was chef kiss for me

You're welcome! So glad I could help (≧∀≦)