So far I've reached chapter 4, but there's something about Helianthus' moe gap in the plot? I love that.
Edit: Nevermind, I just finished 1-4 in emergency mode and it shows the first hint.
Updated
Hey, aren't you getting too far after your enrollment?You keep dressing like a weirdo at work.Why so serious? I bought these clothes with my hard earned money.GNK pays for your meal and room, but all I've seen you spend on is that evening dress。While we are at this, what did you spend your salary on?Well...Well...um...you know...um...yeah...you know....I...I saved them...you know...for the future...Such a cutie, just like a child.