Jujutsu Kaisen Vol.29 (Jump Comics)

With the help of Miguel, Lalu, and the Natsuyu faction, Sukuna uses the "Black Flash" to regain his lost power against Kojo and the others who are thinning...!! As they continue to fight to the limit, Kojo also unlocks his potential through awakening through “Black Flash”!?

Note: This is in japanese language

As it is a translation, the result may not provide an accurate description. Please use it only as a reference