Both of these dramas give me similar vibes and I love both of them. The female leads are quite similar in terms of personality and fashion style. The male leads are both the CEO of a company as well. Both dramas are more of a light-hearted drama about romance-comedy. The most important is that their chemistry is on point! There's more similarities but I can't think of anymore right now.
These two dramas are based on CEO who suffering amnesia from his love life. In My girl is an Alien drama, Feng Leng forgets his girlfriend after rainstorms come. In Well dominated Love drama. Yan Jing Zhi forgets his girlfriend after he Confesses his love. Based on both drama, His mother is the reason for this Amnesia.
Two fantasy shows with a very assertive and (man-)crazy female lead. They're not the types to sulk or shy away when dealing with an evil second female lead. Instead they know how to stand up for themselves. The male leads are a bit different in the shows tho, but both are very likeable and not (unnecessarily) mean.
Gyun Woo is a college student, more interested in picking up girls, drinking with his buddies and avoiding his nagging mother whenever possible. While riding the subway, a drunken girl then changes his fate forever. She's nearly unconscious on the train and vomits on an older guy. She then leans over to Gyun Woo and everybody assumes she is his girlfriend! Gyun Woo soon finds himself in a relationship he didn't ask for, but soon unable to forget this sassy girl.