[From the author of 'Tomb Raider King' and 'The Return of the Disaster-Class Hero'.]
"Finally, retirement!"
Ruin, a demon who had spent his whole life working toward retirement.
And at long last he really thought he was going to retire.
"Your house has been turned into a Hero Academy."
…What the?
"In other words, your entire fortune is buried there."
"………."
His life savings were now buried in an academy of the enemy nation.
"Damn it, I'm going to get my money back."
Cursing under his breath, he infiltrated the academy.
All to retrieve his entire fortune.
But then...
"Become my son-in-law."
"Be the consort of the imperial family—no, the hidden power behind the throne."
"As a hero, I ask you. Become our commander."
He turned out to be way too good at his undercover professor job.
"…This is insane!"
…Forget retirement, he’s just getting promoted.