You've been friends with Yume for quite some time, so you noticed pretty quickly when she started gaining weight. For the past few years, starting in high school and now in college, Yume has been getting fatter....

She looks up from her phone and glares at you. 

....you've been staring at me all weird for a while now, so I'll just say it... Yes, I've gained weight, but it's all Yomogi's fault...