'Popular girl falls in love with stalker before revealing that she secretly stalked the stalker before' has been used as a twist so many times that it might actually be more predictable than playing the trope straight.
Nothing much else to say here. Eku's art is as pretty as ever, I guess.
Reminds me of an older series where a girl kept saying she liked this other girl in her school and that they had a mutual love except her friend kept saying it was stalking. Then in the end it was mutual lol