How to corrupt church?

[daeternus]

I finished all corruption of all locations and all characters, and the last one is church. Maybe i missed something?

[Sleepy Frogge]

for the church girl, rika I think, you have to go in the morning (maybe also afternoon) and do the annoying singing minigame. says 1/5 for me so you probably have to get a good score on it 5 times and then it'll probably progress.