A 15-year-old teen who has heart murmurs (Specifically Mitral stenosis). When he's bored, he also is a cardiophile and feels and listens to his heart.

Heart murmurs are unique heart sounds produced when blood flows across a heart valve or blood vessel. This occurs when turbulent blood flow creates a sound loud enough to hear with a stethoscope. The sound differs from normal heart sounds by their ccharacteristics

He has a sweeter sister who has a fluttery heart and A-fib, named Love Letter.