reco

https://www.mangago.zone/read-manga/sora_o_daite_oyasumi/

https://www.mangago.zone/read-manga/double_play/

Idk if it’s unrated but I haven’t heard many people talk about it
-Mothers Spirit (11? Chapters and completed)

https://www.mangago.zone/read-manga/tokyo_boy_meets_country/

https://www.mangago.zone/read-manga/futari_hyakkei_kaze_no_owari_haru_no_hajimari/

https://www.mangago.zone/read-manga/kappa_no_yomeiri/

https://www.mangago.zone/read-manga/shitsuren_junky/ <-idk if this one is underrated but this one is super funny

https://www.mangago.zone/read-manga/on_this_auspicious_day/

https://www.mangago.zone/read-manga/tonari_no_metaller_san/

https://www.mangago.zone/read-manga/uchi_no_ouji_irimasen_ka/

https://www.mangago.zone/read-manga/seikaku_kuzu_de_nani_ga_warui/

https://www.mangago.zone/read-manga/fukigen_na_doudou/

oh wait just realized do you mean underrated angsty bl or bl that is too underrated that is painful??

uhh however there are some angst in my list so i think it might be ok? mostly fluff, and comedy and a bit of angst