Out of Love is the 8th chapter of the Citrus manga. It was released on January 18th, 2014.
Yuzu gets to know of a litle bit more about Mei's and their fathers relationship, while hanging out with Harumin after school and getting a call from her mother about there father leaving again leading Yuzu with Harumin's help to race to school to find Mei in time to say good bye.
Yuzu runs around the school to find Mei and takes over the schools announcement system to inspire Mei. When Mei Meets up with Yuzu Harumin lends her bike to them and after a few heartfelt words Mei expresses her feeling to her father. That night they read all the letters that she got from there father and share a kiss that leaves both of them speechless.