Biceps Brachii King

Biceps Brachii King (上腕二頭キング, Jōwan Ni-tō Kingu) is an artificially created steroid drug developed by Fukegao. It is strawberry falvoured to make it easier to gulp down.

Overview
Biceps Brachii King enlarges the user's muscles so that their body mutates into a gigantic form of immense proportion. The only known user is Marugori.