Hakata Tonkotsu Ramens 6 (博多豚骨ラーメンズ 6) is the 6th light novel of the series. It was published on March 25, 2017.
A dangerous Mexican drug cartel makes their arrival in Hakata that is booming with fights between underground organizations. The nightmare of the worst drug war that happened in Mexico in the past is now happening to the new Asian markets in Hakata. Xianming Lin and Zenji Banba get into a fight and break up only to receive jobs on opposing teams. Banba and Lin, refusing to reconcile, get caught up in the multinational drug war along with their friends Enokida and José Martínez, and a foreign spy, Ricardo Seiya Ortega.
|Prologue||Seasonal Opening Ceremony|
|10||Extra Tenth Inning|