For example, how much do you know about the scene pictured above?
I watched Maria-sama ga Miteru from Animax several years ago but only the first two seasons. I barely remember those yuriliciously sweet moments, like when Sei had a short romantic relationship with Shiori that lead to a sad ending and a chat with Yumi that almost lead to a kiss. I think Sei and Yumi would make a cute couple. Heck, when I was watching the anime, I think Sei would make a better pair for Yumi than Sachiko or even Touko.