Due to the earthquake in Japan thus postponed [Naughty Kiss](Taiwan ver. Korean ver.) Japan broadcasting memorial event -- Osaka Premium Talk & Live Event was finally held on 3 May, Kim Hyun Joong and Jung So Min appeared together, partial profits from this event will be donated to the affected area.

Day and night 2 session of Live & Talk attracted around 6000 fans to show their support, both of them greeted everyone in Japanese. Especially for Jung So Min, practiced Japanese by herself before she came to Japan, during the event some of her accurate pronunciation surprised many spectators.

Talking about 11 March magnitude 9 earthquake, Kim Hyun Joong showed a sad expression, said "I think many people felt very hurt because of the sudden disaster attack, but please bring out your courage, to overcome these difficulties. I would also like to become the strength for everyone, helping everyone", Jung So Min revealed that she has very good friends in Japan "It seem like I am also the one hit with misfortune during the earthquake, really feeling very sad, but everyone must keep up the spirits".

During fans Q&A section, Kim Hyun Joong was asked "If your marriage partner is someone like Oh Ha Ni who doesn't cook, what will you do?", he humorously expressed that he doesn't mind his wife's cooking is unpalatable: "Just bear with it for 2, 3 times, reluctantly (unpalatable food) eat them up, after that will just go out to eat", showing a cool side just like Baek Seung Jo in the drama. But Kim Hyun Joong also has his unrestrained times, when the MC was enthusiastically talking about the ballet dancing scene in the drama, he totally space out "Ahh, I was thinking about other things", everyone burst out laughing instantly.

Kim Hyun Joong sang 2 songs [Thank You] and the drama OST [One More Time] during the event, towards the end he said through watching [Naughty Kiss], hope spectators can reminisce the beautiful memories of their first love.