Story
Kang Tae-han, known as the Heavenly Demon (Cheonma), whose power once reached the skies, returns to his original life after 60 years! “Wow… in such a blessed era, and my body’s in this state?” “Your body’s screaming for help, but are you not hearing it?” The physical and mental recovery project of the old-fashioned, grumpy(?) Heavenly Demon Kang Tae-han begins!!
Synopsis via AniList (English).
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