Recommendations

ML in both are princes who transform into a superhuman "puppets".
Historical.
Vibes of dramas are different but if you enjoy a hidden supernatural identity you can give both a try.

- similar vibes but not that heavy (more romance focus)
- both have family issues
- both couples are like shining light to each other
- similar period
- same mother lead of FL

Both are modern romance korean dramas. Both dramas also have same premise as two childhood friends/lovers reunited when they become adults.

Both are modern romance korean dramas. Both dramas also have same premise as two childhood friends/lovers reunited when they become adults.

Both are modern romance korean dramas. Both dramas also have same premise as two childhood friends/lovers reunited when they become adults.

Both are modern romance korean dramas. Both dramas also have same premise as two childhood friends/lovers reunited when they become adults.

Both are modern romance korean dramas. Both dramas also have same premise as two childhood friends/lovers reunited when they become adults.

Both are romance korean dramas with summer settings. Both dramas have a good pairing and great actors.

Both are romance korean dramas with summer settings. Both dramas also have same premise as two childhood friends/lovers reunited when they become adults.

In Defendant, Um Ki Joon's character (one of MLs) has identical twin brother. In Last Summer, ML, Lee Jae Wook's character has identical twin brother. Except that, they're totally different genres.

Both are dramas with ML having identical twin brother which means ML actors playing twin roles. But, both are very different genres. One is fictional historical epic drama, and the other is modern youth romance.

Both are dramas with ML having identical twin brother which means ML actors playing twin roles. But, both are very different genres. One is fictional historical epic drama, and the other is modern youth romance.

Both are dramas with ML having identical twin brother which means ML actors playing twin roles. But, both are very different genres. One is fictional historical epic drama, and the other is modern youth romance.

Both are dramas with ML having identical twin brother which means ML actors playing twin roles. But, both are very different genres. One is fictional historical epic drama, and the other is modern youth romance.

Both dramas have main characters having double roles. In Mask, it's FL who has a doppelganger who looks exactly like her. In Last Summer, it's ML who has identical twin brother.