Growing up, Eun Hae-il is unable to forget the boy he had his very first crush on.
This year, he gets accepted into his dream college after retaking the entry test 4 times.
However, one day he saves a child from drowning in the ocean but, attempting to save him, he submits to exhaustion and drowns.
Right before he stops breathing, he closes his eyes and thinks of the boy he has longed had a crush on, but when then he opens his eyes again he's no longer drowning in the ocean, but on a bus.
Hae-il, a man who has crossed between time and has survived death, now stands in front of the man he has longed loved, Yoon Pado. “Has God really given me a second chance?”