Navigating high school romance is never easy, especially when your significant other seems indifferent. Su-ae Shim understands this struggle all too well as she's spent years dating her emotionally distant boyfriend, Minu Kang. Yearning for a connection akin to her charismatic stepsister, Ra-im, Su-ae's world takes an unexpected turn when she stumbles upon Jellypop, a sentient flip phone, in her locker.
Jellypop becomes Su-ae's unconventional confidant, offering witty insights and advice on her love life. As Su-ae distances herself from Minu and unexpectedly crosses paths with his friend, Eunhyeok, the dynamics of her heart begin to shift. To complicate matters further, suspicions arise about the relationship between Minu and Ra-im, leaving Su-ae in a whirlwind of emotions.
In the midst of high school drama and teenage uncertainty, Su-ae embarks on a journey to discover the true meaning of love. Will Jellypop's quirky guidance lead Su-ae to find genuine affection with Eunhyeok, or is there more to the story between Minu and Ra-im than meets the eye? "Operation: True Love" unfolds as a delightful tale of unexpected connections, teenage romance, and the pursuit of genuine happiness in the unpredictable world of high school.