A girl with such features, giving her life away to protect you, how could not love her?

I first thought of replacing the features above with TV Tropes tropes to the maximum extent (small breast-> pettanko; Introverted-> Shrinking Violet; Weak constitution-> Ill Girl; Clumsy Girl-> Cute Clumsy Girl); but they I noticed some of them may not be completely obvious-- so I just changed the first one.