It's a day for the star of OhaYoumu, the number one cutest Youmu! "OhaYoumu" is a portmanteau of "Ohayou" / "Good Morning", and Youmu's name. I think it's Youmu-kun's name for this series

You guys have all been looking at other girls all the time recently, haven't you?

I wish you'd spend more time looking at me too!