Akemiya! (I knew I'd gotten the name wrong) Absolutely, you won't want to read the manga...things get worse from there so far as he's concerned. (I don't remember the coffee creamer thing, but it's quite possible I blocked it out of self-preservation.) It's weird when a sympathetic character is created only to be utterly abused. I suppose one of the reasons I keep reading is the hope that he'll finally get a fair deal.

As for Ushio--though I get your initial reaction to her, somehow she's won me over. I like the backstory that the manga gives (her previous school, the way she and Sumi become closer, etc.).