Boredom-hating Sealing User: In Prison My Occasional Roommate is an Old Man Who is the Only Sealing User in the World, So to Kill Time I Became His Apprentice (Associated Names)

“If I put my life in a notebook, it would end in one page.” Seal, a young man in prison, had spare time. Closed space, unchanging scenery. Every day he read books inside the prison cell. A boring life that made him feel like he was going insane. Then, a newcomer came to his prison…