suggest me

http://www.mangago.zone/read-manga/heaven_s_love/
http://www.mangago.zone/read-manga/sannin_gurashi/
http://www.mangago.zone/read-manga/hanaya_no_nikai_de/ and series
http://www.mangago.zone/read-manga/sukitte_iwasete/
http://www.mangago.zone/read-manga/kozure_ookami_inoue_satou/ and http://www.mangago.zone/read-manga/ookami_no_ketsuzoku/
http://www.mangago.zone/read-manga/kawaii_akuma/ and series with http://www.mangago.zone/read-manga/akuma_wa_hohoemu/ also http://www.mangago.zone/read-manga/akuma_ni_kiss_wo/

http://www.mangago.zone/read-manga/kuroneko_kareshi_no_itoshikata/ and series with http://www.mangago.zone/read-manga/fukigen_kareshi_no_nadamekata/

ah, Love stage and Back Stage(?) forgot the title, sorry

yes, that's both correct it's love stage. younger bro is the main. the older bro's love story is in the omake. http://www.mangago.zone/read-manga/love_stage/ backstage is a separate series of shorties http://www.mangago.zone/read-manga/back_stage/

thank you (⌒▽⌒)

thank you

http://www.mangago.zone/read-manga/shouwaru_ookami_ga_koi_wo_shita_rashii/
(the mangas in the summary)
+Himitsu Ja Nai Kedo

http://www.mangago.zone/read-manga/mae_yori_mo_dare_yori_mo/

http://www.mangago.zone/read-manga/kirepapa/