The appearance of the Einst has plunged the Earth into Chaos, and the Federation, Neo-DC, and the Inspectors reach a stalemate. Meanwhile, Einst attack the Canadian city of Winnipeg. The Hiryuu Custom rushes to the area, but is stopped by Alfemi and a changed WEiss Ritter. Bullet and Kusuha launch in the Grungust Type-3, and when they arrive they feel an evil energy in Winnipeg. Its source is a massive Einst. As they struggle against it, the Chokijin RyuKohOh appears.

Otohime and Urashima Taro fall into the human world from Fairy Land. Otohime, who loves hospitality, begins serving various extravagant foods in an effort to please people. The girls try to get Otohime to return to Fairy Land, but neither Otohime nor Urashima Taro will listen. Furthermore, Otohime has become a fan of Wish and says she wants to give him Valentine's chocolate at his Valentine's concert. However, Otohime's handmade chocolate is very strange chocolate that causes the person who eats it grow old. Not listening to the girls trying to stop her, Otohime goes to the concert hall. The girls also head to the concert hall to try to stop Otohime, but they don't make it in time and everyone has become elderly. And on top of that, even Wish eats the chocolate...

A - Hilda brought back a bunch of toys from the Demon World for Baby Beel. When Oga and Hilda were assemble one, a horrible accident occurs! B - The Zebul Spell expands when one does evil. So won't it contract if you act like an angel? ...thinks Oga, who uses a Play Doctor toy with Beel as the doctor to try and heal patients. It's time to play Demon World Doctor!

Man, I'm thirsty…hey, what's this box? T-This is chocolate! Homemade chocolate! W-Who's the two-bit nobody…and which one of my girls made this for him?! Trying to steal the innocence of my daughters…I'll kill him! Wait, no, I'm not here to cause any trouble! Damn, they thought I was an intruder again and I ran into this shed… Hmm? Satou-kun! I see, so you're running from girls trying to give you chocolates, huh? I know how you feel, son! I used to be quite a hunk myself!

The many Blue Thorn shindans Zazie shot into Jeel awaken the Cabernet. Just as Zazie thought, it takes Jeel away. However, while Zazie and Lag give chase to finish it off, they see the fragments of Jeel's heart. After knowing Jeel's real motivation, Zazie saves him despite himself. But the two of them are not going to waver from their hearts so easily...

Aichi, Morikawa, and Izaki go into the city to a card shop. Aichi is all excited about his first time in another card shop than Card Capital. It's then that Morikawa gets lost, and they can't find the shop. Right when they're about to give up, before Aichi's eyes there appears an extremely mysterious card shop...