Biorhythm

Biorhythm is an in-game mechanism that affects all characters on the battlefield. Depending on a character's Biorhythm status, they may receive a bonus or penalty to Hit, Avoid, Skill activation and chance of finding hidden items.

Biorhythm status is indicated by either the red or green arrow next to a character's portrait or the sine wave in the Relations/Biorhythm section of a character's status screen. The higher the indicator, the better the Biorhythm status. Conversely, the lower the indicator, the worse the Biorhythm status. The Biorhythm status changes as the chapter progresses