Barairo Mitsubachi

High schooler Aoi has always been wondering who his daddy long legs was. Sakurai-sensei is who Aoi think is his daddy long legs, but when Aoi gets information that his daddy long legs will look out of his window at 3 o'clock, and it's not Sakurai Aoi is devestated. Was that man truely his daddy long legs? And why is Aoi feeling so depressed...could he have fallen for Sakurai? And is Sakurai really his daddy long legs?