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Bonus specials released together with the OVA.

The visual features the tagline, "I met you in my 17th summer ..." The "boy-meets-girl" story depicts how words and music bridge the gap between Cherry, a boy who is terrible at communicating with other people, and Smile, a girl who hides behind a mask. They meet in a mundane suburban shopping mall in a provincial city. Cherry always wears headphones and puts the feelings he cannot utter into his hobby, Japanese haiku poems. Smile always wears a mask to conceal her large front teeth, for which she has dental braces. As a popular video star, she streams a video about seeking "cuteness."

Dr. Hell and his Mechanical Beasts are back, and they're more dangerous than ever before. Kouji Kabuto and Tetsuya Tsurugi fight a fierce battle against these hellish machines, which are under the command of Baron Ashura. Unfortunately, they are defeated, with Kouji's Mazinger Z being captured and Tetsuya's Great Mazinger seriously damaged by the enemy. The devious Dr. Hell quickly converts the captured robot into Ashura Mazinger and uses it to attack the Photo Power Lab. At the same time, Kouji is missing in action, which leaves Testuya to defend the lab in the damaged Great Mazinger. But the forces of Dr. Hell are too strong, even for a brave pilot such as Tetsuya, and all seems to be lost. The battle seems to be drawing to a close, until an overpowering blast fired by an unknown robot destroys the entire Mechanical Beast army. Could this mysterious robot be the legendary Mazinkaiser, and who is piloting it?

The 2nd Season of the Love Live! School Idol Project TV anime.