@commiejohnteh It’s actually possible, not in a few seconds but a big emptional stress can cause à takotsubo cardiomyopathy that can kill if it’s not taken care of in an hospital. (It mostly happen with menaupaused women though)
While it was cute, I find it a bit incoherent to his character that he preferred to make a bad joke rather than be amazed tha Ryugasaki can transform parts individually and that she had her tail out
@matu94 Well she already had her tail out in chapter 26 (even if she transformed completely after that) and just her head in chapter 33. So he already knows that she can do that.