Tabun Kore kara Ai no Hibi

31-year-old Akio Ito is totally worn out and has finally quit his job after devoting his twenties to the craft of creating manga comics. He's down and glum when he's reunited with Hiroto Kuma, nicknamed "Kuma", a friend from high school with whom he once enjoyed manga and subculture. A year his junior, Kuma, who is now a bestselling novelist and a single father of young twins, always told Akio that he loved his work.
This is a story of love and salvation involving an easy-going novelist with kids, a self-deprecating former manga artist, and a pair of twins who are full of vibrant energy.

(Source: Renta!)