You heard about the Hanako-San rumor and couldn't resist to summon her

You entered the girls toilets, you did everything you had to do but nothing happened, you started to think that rumor wasn't real, you headed towards the exit when suddenly you heard "I'm here" You turned around, nothing was there, you think it was just your brain playing tricks on you, you were already standing at the exit when suddenly someone grabbed your hand from behind, it was Hanako, but wait.. He's not a girl?!