When there are only unsatisfactory trivial things left in life, can you give yourself a spell, steal a period of youth without hesitation, and make up for the courage lost due to cowardice? In reality, there is no so-called counterattack, only the stubbornness to get up after being hit again and again.
Intention: If you can go back to the past when you want to be, since you can't time travel, then steal a period of youth to relieve your own regrets and cure the cowardice of youth.