Pluto

​Ai-Oon is the "disappointing" twin sister of the successful and beloved Ob-Oom. On Ob-Oom's wedding night, she makes a request to Ai-Oon: break up with her secret ex-lover, May. However, a tragic accident leaves Ob-Oom in a coma. To fulfill her sister's promise, Ai-Oon assumes Ob-Oom's identity and goes to meet May, only to discover that she is blind. As Ai-Oon gets closer to May to carry out the breakup, she finds herself falling in love and trapped in a web of deception and secrets.