Stuff like Honey, Kaguya-sama, Tonari no Kaibutsu-kun, Special A, etc. where people in the friend group besides the main character are love interests with their own side story of them getting together. Especially in friend groups of four.
http://www.mangago.me/read-manga/tomo_chan_wa_onnanoko/ http://www.mangago.me/read-manga/orikou_yaju_niwa_aragaenai/ http://www.mangago.me/read-manga/dasadanan/ http://www.mangago.me/read-manga/zense_coupling/(๑•ㅂ•)و✧
Stuff like Honey, Kaguya-sama, Tonari no Kaibutsu-kun, Special A, etc. where people in the friend group besides the main character are love interests with their own side story of them getting together. Especially in friend groups of four.