The Mercenary Possessed by a Regressor Wants to Graduate from the Academy

The lone survivor, ‘Highlander’ Connor MacLeod. “My name is Connor MacLeod. I traveled back in time to prevent the world’s destruction and possessed my past self.” On the first day of academy admission, a monster over 2 meters tall with dark skin and horns on its head appeared and said, “I am you from the future.” I was possessed by my future self who regressed from the future. Moreover, “So, what’s the reason for the world’s destruction in the future?” “I don’t know.” “…Why did my future self become such a monster?” “I don’t know.” “Is there a way to prevent the world’s destruction?” “I don’t know.” “Sigh.” The mercenary possessed by a regressor wants to graduate from the acade...