guide on how to increase stamina and possibly make it inf, step 1 in early game ur broke and weak hence use all time to run in mountain, step 2 use level up to increase and regen all the stamina back then repeat the process. the multiplier is 5 like ur stamina bar would be divided by 5, with food buff it can be lowered to 3, and once u got 10k. ur almost have inf stamina however if ur crazy mad like me, run to the mountains a bunch of time and eat a crapton of matsutake rice bowls and get 1million stamina, yes 1 M I L L I O N stamina, it gives you ultimate power for mentai and in akari's event you'll fight a boss with 2500 hp with a crapton of dmg, why do this tho? well simple inf stamina and memory points