No puedo decirte que te quiero, 1

The story is set in a world where, due to the effects of a meteorite impact thirty years ago, people on Earth can now only fall in love with people of the same gender. Kazusa Takanashi, however, is a young woman who has feelings for her childhood friend, Ayumu Nakagawa... who is straight! Ella kazusa has spent her whole life pretending that she doesn't feel anything for him in order to fit in with society and not be considered a freak, but everything changes when one day she accidentally confesses her feelings to him...