Hard option involves using arrays / lists. (tes.com)
Treatment is a much harder option than prevention. (pethelpful.com)
The game has two modes, Story Mode or Battle Mode, in Story Mode you can choose to start as either Ayato Amagiri, the series» protagonist, or create an original male character, this in a roundabout way functions as an easy or hard option because if you choose the latter you enroll much earlier to give your character time to increase their statistics as they start way below Ayato's premade stats. (gamegrin.com)