Gokushufudo: The Way of House Husband 1 (極主夫道 / Gokushufudō #1) by Kousuke Oono

He was the fiercest member of the yakuza, a man who left countless underworld legends in his wake. They called him 'The Immortal Dragon.' But one day he walked away from it all to travel another path-the path of the househusband! The curtain rises on this cozy yakuza comedy!

Dog Gone Note: This book is in excellent condition.