Jeon Hye-bin. She found the identity of the memory loss accident @Heart is beating 140107 

SBS Real Entertainment Heart Beats 11 (Ep.11)
2014-01-07
* Jeon Hye-bin and Lee Won-jong, a reasoning showdown that rivals Sherlock Holmes?
* Hallyu star Park Ki-woong! World's first wrecker fan meeting held!
* Blockbuster 級 real fire training conducted!
View the latest video: vod.sbs.co.kr