public void SetEnemy(EnemyController enemyController)
        {
            enemy = enemyController;

            ITargetable targetCandidate = enemy.GetComponent <ITargetable>();

            foreach (IAtkSkill atk in GetComponentsInChildren <IAtkSkill>())
            {
                targetCandidate.HandleAttack(atk);
            }

            timeInBattle = 0f;
            totalDamage  = 0f;
        }