Kazuki is so sweet, doing her best to help out her sick sister, is truly a Kazuki thing to do. The message is not lost under all the laughs, gag moments, and the occasional ecchi moment that flashes across the screen. That a sister wants to be there for for older sister, and to no feel like a burden, and to do something to her appreciation for all her elder sister has done for her. I noticed Marie chan has taken up the mantle and had her own nurse costume, So cute!