A young girl with a scraped knee suddenly appears before Shun. He tries to give her a flowery band-aid, but she runs away. Despite his shock, Shun chases after her and manages to give her a band-aid, but starting the next day, she begins harassing him...
This has been going on for three days now.
Esto ha estado sucediendo 
desde hace ya tres días.
Esto ha estado sucediendo 
desde hace ya tres días.
Já foram três dias assim.