"The quarrel of lovers is the renewal of love." is the second OVA of the Sekai-Ichi Hatsukoi anime series. It was released on DVD just over a week before the first episode of the second season first aired. The DVD was sold bundled with the limited edition of the sixth manga volume.
Yoshiyuki Hatori and Chiaki Yoshino have been going out for a year now, and Hatori reflects over that. Yoshino gets a call from his mother who complains over how he never visits. As Yoshino plans to go to his parents’ house, Hatori decides to go along with him and visit his mother and sister. While there, Mrs. Yoshino makes a remark how Hatori and Chinatsu (Yoshino's sister) would make a nice couple, which makes Yoshino jealous. Hatori is touched by how much Yoshino cares for him.