Mangaka: YABUUCHI Yuu
Summary: In modern times on Earth, Yuina Hatori goes on with her life, enjoying the normalcy permitted to most girls her age. And then, a winged silver-haired beauty falls from the sky before her… Miruku gets the shock of her life when she finds a strange person in her bed one morning. Ruu claims to be an angel who has cast a spell on Miruku’s family and schoolmates. In return for silence about her identity, Ruu agrees to help Miruku any way she can. One day, a student quarrels with the rest of the class. Ruu tries to put things right with a spell, but it doesn’t seem to work on that student… (Summary from IvyScan - joint with DGT)

Volume 1, ch. 01
Volume 1, ch. 02
Volume 1, ch. 03
Volume 1, ch. 04
Volume 1, ch. 05
Volume 1, ch. 06