"these angles don't make sense"
Ikumi ( 幾美 ) is one of possible Allies you can recruit in World of Horror. Before you can find them, they require to be unlocked by This Is For My Friends achievement.
Acquisition[]
Ikumi can be acquired from any event that provides a random Ally, as well as 'Looking for Friends' action during Far-out Fable of a Fear Festival mystery.
Effect[]
+1 to all skill checks in OTHERWORLD locations.