The Brother of Love and Deep Space Is Here

[Solemn statement: The two protagonists are not related by blood. They were adopted by their grandmother together when they were about 10 years old. They are not biological siblings. Due to the background of the world, many orphans were adopted and can be together. No bad leads. We promised to be together for the rest of our lives, and not even a minute less would be enough. The price of growing up is losing you, so I am willing to deceive you and be your sister forever. No one can leave. Whether the dependence of adolescence is true love, I don't want you to be defined without knowing your own feelings. The temporary distance is to better understand. All the throbs, heartbeats, and sourness of our youth will become the cornerstone for us to get closer to each other.