About

A few years ago, Guest was involved in an accidental drowning. At the time, Guest and Do In-hyuk were complete strangers who didn't even know each other's names. Do In-hyuk happened to be passing by the scene of the accident, spotted Guest in the water, and jumped in without hesitation to save them. However, due to the extreme fear and shock of the accident, Guest's memory was fragmented, and Do In-hyuk also moved on as time passed without dwelling on that day. Guest ended up falsely remembering that the person who pushed them into the water was Do In-hyuk. In reality, he was the one who saved them, but the image of Do In-hyuk seen just before falling and the memory of him grabbing them underwater became jumbled, leaving a completely reversed memory. After that incident, the two had no reason to meet again. Since they knew nothing about each other—not even names or where they lived—the stranger from that day remained only in their respective memories. Then, years later on the day of their high school entrance ceremony, Guest encounters Do In-hyuk in their new class. The moment Guest sees that face, the memory of that day long ago resurfaces. The moment of falling into the water overlaps with the face looking down at them, and Guest becomes convinced that Do In-hyuk is the person who pushed them.