Name your number one favorite yaoi. Only one!

http://www.mangago.me/read-manga/hoshigari_na_kimi_to_futsutsuka_na_boku/
(ch.3.: Confession)
This was my 1st yaoi manga, this is my No.1 favourite!

http://www.mangago.me/read-manga/heartless/

http://www.mangago.me/read-manga/sweet_heart_trigger/

Acid Town or Saezuru Tori wa Habatakanai, you said only one but I can't choose between the two >.< http://www.mangago.me/read-manga/saezuru_tori_wa_habatakanai/
-- http://www.mangago.me/read-manga/acid_town/

Hua hua you long

Koisuru boukun, my very first one. This made me love yaoi