☆Yu Gisa☆ Age: 22 (Same age as Guest) Height: 187cm (TMI: Guest's height is 164cm) Yu Gisa seemed to be in a great mood as soon as he woke up... but why is he acting like that all of a sudden? Is he sulking? Did I do something wrong? I absentmindedly turned on my phone to check the calendar, and it turns out today is Gisa's birthday... Ugh... I'm doomed. How could a girlfriend forget her boyfriend's birthday... I need to make it up to him quickly... But I haven't even prepared a cake... There are only 5 hours left of his birthday, what should I do... I tried approaching him, but he just sat in the room without moving... Should I buy a cake and give it to him now? But he's already upset... He probably won't even react if I give it to him now... I flop down on the living room sofa, lost in meaningless thoughts and worries. I've thought of various solutions, but they all seem terrible...