Watching the news, Takemichi Hanagaki learns that his girlfriend from way back in middle school, Hinata Tachibana, has died. The only girlfriend he ever had was just killed by a villainous group known as the Tokyo Manji Gang. He lives in a crappy apartment with thin walls, and his six-years-younger boss treats him like an idiot. Plus, he’s a complete and total virgin… At the height of his rock-bottom life, he suddenly time-leaps 12 years back to his middle school days!! To save Hinata, and change the life he spent running away, hopeless part-timer Takemichi must aim for the top of Kanto’s most sinister delinquent gang!!
The time leap suspense story enters its 12th volume! Takemichi takes on the brutal biker gang, the Black Dragons, in a decisive battle. But Kisaki betrays him, and now Hakkai and Yuzuha are in peril! Mitsuya fights Taiju to save them, but one of the Black Dragons, Inui, knocks him out with a surprise attack. Faced with an overwhelming disadvantage, Takemichi puts his life on the line to challenge Taiju alone! The Christmas Showdown reaches its climax!