"He can call me selfish but I've done all these just for him." I said as tears fall down my face once again. [A/N: Wah! It's been so long since I've written a story and this is the first time I wrote in English so I will probably have grammatical errors. This is just a one-shot story and it is based on Day6's debut title track, Congratulations and I wrote this to celebrate their 3rd month since they debuted~