The Day of Becoming You

2 friends in romance with famous "idols" or virtual idols part of "band"
secretive rendezvous
theme of freedom from meeting demands of being a celebrity

Body switching between male & female...................................................................................

Sweet yet somewhat bitter romance with a twist that will catch you unaware. While one leans towards melo and the other is more of a comedy, Im certain though that if you liked watching one there are high chances that you will like the other.

The similarities are body swapping but in 'The Day of Becoming You' gender-swapping is involved with body swapping and it's a romance drama.

Both dramas have body switching in them.
The leader of a boyband and an entertainment reporter are forced into many outrageous situations after they switched bodies. Jiang Yi is a big star in the entertainment industry. He is the cold and distant leader of a popular boy band. In reality, he's simply not good at expressing himself ever since his parents divorced when he was young. Meanwhile, Yu Sheng Sheng has become an entertainment reporter who keeps running up against a stone wall at work. Their lives were not meant to intersect, but an accident results in the two exchanging bodies on their birthday which happens to fall on the same day. The sudden change catches them off guard and with only each other to turn to for support in the days and nights that followed, Jiang Yi and Yu Sheng Sheng gradually fall in love.

I find them similar mostly over how natural the romance and the relationships were acted out and presented.