Group of friends dramas? Like Tantei Gakuen Q, Yukan Club! Or Boy bully girl he likes Drama.?

I wan dramas with group of friends together solving mysteries like Tantei Gakuen Q, M.I.T, Yukan Club. Or drama with school life and romance, boy bullies the girl he fell in love with. Or dramas like Hanazakari no Kimitachi e. Preferably Japanese Drama or Taiwanese. Genre, School Life, Mystery, Reverse Harem(if possible), Romance. :) Thanks! If you have any suggestions, please mail Hanashiru_Kiyumi@yahoo.com.sg :D