ok...maybe im doing my math wrong here but.
it takes 19,000,000 battle points to reach the maximum rank and get the 100 attack power unit.
every fight i win, i get am average of 18 battle points.
that is 1,055,555 wins i need.
it takes 3 minutes to restore 1 point of stamina
that is 3,166,665 minutes
or 52,777.75 hours
or approx 2,199 days
so if i played non stop 24/7 never sleep never stop battling, getting my one fight every 3 minutes on the dot every time, it would take me 6.024 years to reach the maximum rank!
in my book, i consider that impossible