When Y/N moves to Bondy with her family, the last thing she expects is to find a friend next door who will change her life. Kylian, her new neighbor, is full of energy, dreams, and a kindness that immediately draws her in. From the moment they meet, a strong and easy friendship begins to grow - one built on shared laughs, late-night talks, and years of memories. But as they grow older and life starts to pull them in different directions, their connection is tested by unspoken feelings, shifting priorities, and the pressures of growing up. What once felt simple becomes complicated - and they both must decide how far they're willing to go to protect the bond that has meant everything to them.