Notes on the End of Doomsday

If a dream is the reason why I choose to time travel, then saving mankind is the reason I cannot refuse. If I am given another chance, I may not be able to refuse the opportunity given to me by Karl. I will become stronger, not only in my body but also in my heart. I don't want to be called a waste anymore. Opportunities are created by myself, and they may also be lost by myself. I can't say right or wrong. I only know that I don't want to be a useless person in the eyes of others anymore. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.