Recommendations

They are both about traumatized young boys finding brothers to protect and get them through. In RH+, the brothers are adopted and vampires; in Fallen Angel, they are actual kin. But still, the bromance feeling is the same. Both shows are mainly centered around the boys and have supernatural/psychological thriller themes.

both movies are an adaption from mangas and in the action / thriller genre

Music, romance, very sweet characters. Kanojo wa Uso Wo Aishisugiteru is a bit more mature and slightly melodramatic (but only very slightly). Make sure you watch until after the credits ;) while Ai Ore! Is more superficial and scripted to fit the label 'cute' (as with many manga adaptations)

The wife is having an affair and the vibe is the same.both are mature dramas with beautiful acting.

The kings in both dramas are almost or completely (you be the judge) insane.

Contain similarities like going to the past via an unusual time travel method to fix simple moments in a comedic way.

Both have a main character who starts a rock band while trying to get a girl's attention.

Both are about the band's story and both movies are music-themed

Gong Hyo Jin. i've watched two dramas both and i absolutely love her acting and her chemistry with the actors are undeniable ! she's an amazing actress, no doubt. And there are a lot of love scenes in both dramas.

This is also a drama about the husband trying to get rid of the wife to take her money. In couple or trouble, the wife ended up surviving but had amnesia so she lead a different life, but in Birth of a Beauty, the wife changes herself and comes back for revenge. The best part about both dramas is Han Ye Seul of course! If you like her in Birth of a Beauty, you should definitely check out Couple of Trouble.

Instead of an old man an old granny becomes young again due to some supernatural cause.

you will find similar atmosphere or feeling...
some characters are quite similar and so the story..
and also the craziness comedy <3 :DD
if you love this drama you will definitely love the other one :)

Both main characters are a woman who is sent to jail for something she didn't do, though two very different scenarios because of the crime committed, they have to learn to cope with the aftermath and begin a new life whether it be love or friendship.

Both are Family drama's which are in constant chaos of all the children of the family, grown up or young and the relationships they create, the problems they cause and the standard family relationship in constant turmoil that you've come to expect.

Stars the same main actors Ayase Haruka and Yamada Takayuki
they play a young couple in love in both dramas.