Sometimes, the loss of a certain loved one can come unexpectedly. And that's what Jeon Somi felt within the numbered days when she started a certain phase of life in college.

This is another sideline of the IOI Shikshins One-Shot Collection specifically the story "My First and Last".  A story on how the baddest on the university faced her ty life with a petty grudge on her little brother and a contemplation of the love of her life.