Taehyun dated chaerin for 2 years now but on his very 21st birthday, chaerin was murdered by an unknown person. It's been 1 year now that Bom, a very close friend of chaerin have cleared away his grief with her love but Taehyun is still looking for chaerin's killer untill now. He now dates Bom regarding their age difference, He cheerish her as much as Bom loves