I really want to watch a drama which contains romance, suspense, mystery with a happy ending. I already watched No Secrets(2019) and Love me, if you dare(2015) and i found out that i really like these type of dramas. Can you recommend for me any dramas like this which are very interesting? Thank you! :)

I haven't watched it yet but When A Snail Falls in Love is similar to Love Me If You Dare, it has the second lead of LMIYD as the main lead. Check its reviews first though.