"close friends" but there are enough romantic implications to the point where it's very clearly canon
Homura and Madoka (Madoka Magica). Suguru Geto and Satoru Gojo (Jujutsu Kaisen). Kinosaki and Hikaru Gero (Marriagetoxin)
Homura and Madoka (Madoka Magica). Suguru Geto and Satoru Gojo (Jujutsu Kaisen). Kinosaki and Hikaru Gero (Marriagetoxin)