Spoiler (mouse over to view)
With the new release chapter 145, most of the goddesses is either founded or reveal to us (reader).
Now here the pondering question which goddess is the oldest and which one is the youngest? Because they all seem to wants some “LOVE” from Keima, the one that been found, of course, an example of older have more say would be in ch137. So which Sister do you think is the oldest and which is the Youngest and who do you think will, among the goddess, have the higher chance of winning/control Keima?