Cléo was adopted by her dads when she was 5, and she met Mike in a playground and since then they are the best of friends. Cléo protected him from bullies and helped him after he was kicked out with her sis. She gave a lot of her dresses to Laï and they started a very close friendship too. She met Coralie in highschool because they were always alone and that made Cléo sad. She helps them a lot when it comes to grocery shopping or shopping in general. it's actually Cléo who buys clothes for Coralie when they need. They're not neighbors but they do live close to each other. When she was 10 she was diagnose with a chronic illness which makes her often tired and sometimes need to wear compressive clothing or she needs a wheelchair to move, and sometimes she can't get out of her house so Mike and the others come to see her and give her her class notes (Mike and Cléo are in the same uni) and Laï make her some cookies.