User blog comment:Samalion/Uuuuuugh/@comment-4485900-20131026050753

For Onigawara's route, you need to download the key for the Raimon club's locker room; and for Yuuka's route, you need to download the key for the small gate in Raimon school's eastern area. It leads to the hissatsu shop outside of the school, which Yuuka stands in front of.