You're my sunset

What if you meet someone who'll change your
life to the worse and to the better? What if you
want more of their smile knowing that it'll only
disappear? What if the only reason you're
keeping up is one person? But what if the only
reason you can't keep up anymore is that same
person? Kayo is relieved to know he has no one
else to lose while standing in front of the person
who'll make him lose everything. He starts
seeing more of him as he slowly started to
develop a feeling of wanting to stay around him.
How will he get over it? How will he say
goodbye?