Ive never read that but here are some green flag leads
https://www.mangago.me/read-manga/i_will_seduce_the_northern_duke/
https://www.mangago.me/read-manga/a_way_to_protect_you_sweetheart/
https://www.mangago.me/read-manga/how_to_protect_my_male_lead/
Pure villain
Maybe meant to be
Want to see my cat?
Positively yours
Kono oto tomare
Daytime Star
Thank you guys!!!!
https://www.mangago.me/read-manga/kawaii_hito_saitou_ken/
https://www.mangago.me/read-manga/the_story_of_a_waitress_and_her_customer/
https://www.mangago.me/read-manga/oremonogatari/
https://www.mangago.me/read-manga/do_chokkyu_kareshi_kanojo/
https://www.mangago.me/read-manga/hatsukoi_maze/
Have you read any of these yet?
https://www.mangago.me/read-manga/iincho_to_furyou_kun/
https://www.mangago.me/read-manga/sesame_salt_and_pudding/
https://www.mangago.me/read-manga/let_s_go_to_work_tomorrow/
https://www.mangago.me/read-manga/kiyoku_yamashiku_modokashiku/
https://www.mangago.me/read-manga/futarijime_romantic/
https://www.mangago.me/read-manga/chorokute_kawaii_kimi_ga_suki/
https://www.mangago.me/read-manga/unlucky_mansion/
Do anyone no of a shojo or josei were the ml and fl is a green flag? Possibly like The Fragrant Flower Blooms With Dignity