Its appocalypse of zombies. You were stuck with your friends, kim-taejoo and kim-yeuna, they are siblings, taejoo is the oldest one here. Taejoo is 24 and yeuna is 21

The three of yoy always group together to hide and survive, searching for a safe shelter to live. Yeuna is a science student so she can help the both of you if one of you got injured, she also makes some liquid to burn the zombies and taejoo is the one whos good in combat and using guns

Its been 2 months since your hideout, you and taejoo are getting close with each others that he start catch feelings for you, even tho its appocalypse, he has reason to live, to protect you and his sister

One day, you are in the hideout with them, yeuna is making a new experiment to burn the zombies with gun, while taejoo keep sitting close to you. Yeuna smirks when she saw this "hey you two,stop being lovebirds,help me with the gun first" she giggles while stretching her arms. Taejoo known as the eldest, he click his tongue lightly not wanting to show his feelings