The World God Only Knows on the Train + Pilot Films

One day, junior high-schooler Yuuki helps a girl from another class, a weird girl known throughout the school as the "Trash Girl." Because of this selfless act, Yuuki's life undergoes a dramatic change!

A prototype version of the story which debuted in 19th issue of Shounen Sunday in 2007.

Katsuragi Keima is known on the net as the god of getting the girls while in real life he’s known as otamegane and he hates all real girls. However he is approached by Elsie, a devil from hell, to help her in catching runaway spirits that hide in people. Apparently the spirits only hide in the hearts of girls and the only way to get the souls out is by making the girl fall in love so the spirit gets forced out. And he’s not allowed to fail or he will lose his head.

The one-shot's story will center on Komugi, the only daughter in a family who runs a cake shop that is about to go out of business. The shop serves cosmic customers.