"We're going to be step siblings?!" And just like that, the new scariest sentence of this generation was born. Paano ba naman kasi even after ending their toxicated teenage romance years ago; Orion Andrada and Polaris Fontevilla found themselves, once again, in a rollercoaster ride situation. Ano na nga bang mangyayari ngayong magkapatid na sila sa ngalan ng batas? World War 3 na ba ang dapat pagkaabangan? Or, a North Star that sits up in the magnificent night sky, will come into action and guide their lost hearts?