Rikon Shinai Otoko summary:

Okaya who was an ace reporter in the social affairs department, abandoned his career and chose to live at home. Okaya makes a bento for his beloved daughter and takes her to kindergarten. Okaya has become an ikumen that everyone envies, but there is actually a grand plan behind it. A recon black comedy that challenges men's unreasonable walls!Serialized in Young Magazine Web Kodansha. Basically about a guy who found out that his wife was cheating on him. He wants to divorce, but to get the custody of their daughter he doesn't divorce right away. Instead, he's trying various things to earn that right.