That bitch Lin certainly likes that knee-smashing move doesn't she. She does it -all- the time.
They made it pretty obvious that she -knows- how Benika and Yayoi fight, since she has probably practiced against Ryuuji. She knows their moves, so she has the advantage. If Shinkurou's balls suddenly grow, he could be able to fight her, since his style is obscure. More realistically, Yuuno would fuck her shit up.