Matsushima, Michiru

松嶋みちる

A second-year student at Mihama Academy, she is a fake tsundere with bleached blond twin tails. She has a deep interest in tsundere characters and tries to act like one. Her silly and energetic personality makes her the mood maker of the class. Her studies are poor.
She always carries a shark-shaped pouch containing lemonade sweets. Despite having difficulty with sour foods, she still drinks 100% pure Vitamin C in order to "improve her intelligence," as she said. She has encountered lots of bad luck since her birth but always manages to get through them in one way or another.
Her representative fruit is the lemon.

Spoiler

The "bad luck" mentioned before was in reference to how she was periodically bullied and abused by her tutors, this all happened behind her parents' backs, causing her parents to think that Michiru was indeed a stupid girl, this alone didn't matter to them though as the fact that Michiru still had her health was enough to keep them happy.
Once it became apparent that she had a heart condition, she had failed all of her parents' expectations and they gradually stopped giving Michiru attention, in stead they started trying to produce a second child. This caused Michiru to fall in to a deep depression; she'd spend days just sitting still in her room because according to her "sitting still was the only talent she had."
One day, as she was contemplating jumping off the roof of her school, she encountered another girl about to jump. Michiru was envious that the girl had managed to build up the courage to take her own life, and inadvertently prevented her from going through with it. These two briefly became very close friends, and Michiru started to take an interest in the world again. However, her new best friend later went through with her suicide in front of Michiru. The shock of seeing her friend leap to her death caused enormous amounts of stress for Michiru's already frail heart, so much so that she was no longer able to live a normal life. She needed a heart transplant, the heart she acquired came from an American girl whom had been in a traffic accident that caused her to become totally paralyzed. This person became the "other Michiru," a Michiru whom only appeared when Michiru was going through a hard time. This Michiru was a much more sociable, smart and athletic girl dedicated to helping the original Michiru get her life on track, but alas it had the opposite effect, as it caused Michiru to almost take her own life trying to get the intruder out.
After that incident, Michiru gets sent to a mental ward, there she is prescribed a medication to suppress the "other Michiru," and she discovered her new purpose in life; making people laugh. She figured if she could give people joy and let them laugh and smile, she would be contributing something to the world. This became her very reason to live, and eventually she constructed a clumsy genki tsundere personality to make this task easier. A little while later she got released from the mental hospital and enrolls in to Mihama academy.