It was about a girl who entered an all guy's school, with a bet that if she isn't discovered to be a boy until they graduate, her guy friend would give her 1,000,000.
http://www.mangago.me/read-manga/from_today_on_i_m_a_boy/
yeeeyyy thanks!!
It was about a girl who entered an all guy's school, with a bet that if she isn't discovered to be a boy until they graduate, her guy friend would give her 1,000,000.