It’s hard dating someone who won’t give you the time of day. Shim Soo-ae knows that better than anyone, having dated her indifferent boyfriend, Kang Min-Woo, for years. She sometimes wishes to be more like her charismatic stepsister, Raym, who seems to have it all. But life takes a turn for the weird when Soo-ae discovers Jellypop, a sentient flip phone, in her locker. Jellypop has a lot to say about her love life, especially as Soo-ae drifts further away from Min-Woo and finds herself running into Min-Woo’s friend, Eun-hyuk. Add to the mix a growing suspicion that Min-Woo and Raym might be more than friends, and Soo-ae might need a miracle to navigate the ups and downs of high school romance!