Somewhat sad story, the guy the MC is infaturated with only likes traps and refuses to meet him whenever he turns into a girl. The MC realizes the guy is an arse who only cares about his 'trap' body and then the guy coldly breaks up with him. He realizes he could have spent the time meeting someone who would love him for who he is. In the end he resolves to become a girl, and finally starts to tell his parents about his transformation.
I'm pretty sure this was already uploaded long ago. Also, the title is translated wrongly. It should be "Hey, I became a girl!" instead of "Hey, I should have become a girl!"