Ah yes the jealous childhood friend that is, totally not in love with heroine and tryna push away the protagonist from them trope. Shame shame, I hate her already.
Okay, I can't help it, I really really like Ayumu. The "no sense of boundaries thing" is absolutely not good (if understandable), but that was one of the greatest introductions I have ever seen.
Why couldn't she have fallen for somebody from the drama or theater club, they'd love her with all of their hearts