flukes in Hana Yori Dango (?)

i found out these coincidences about 2 of the 4 Korean F4 that i now like..

1) i found out that Kim Joon's group, T-Max, is the Korean version of Arashi (Japanese boy group).. Kim Joon played Song Woo Bin (Mimasaka Akira) in Boys over Flowers

Arashi

T-Max

2) where one of Arashi's member, Matsumoto Jun, portrayed Domjouji Tsukasa in Hana Yori Dango

Jun Matsumoto as Domyouji Tsukasa

3) Arashi is a 5-male group just like SS501, where Kim Hyun Joong is a member of the group and also a member of the Korean F4, he played Yoon Ji Hoo (Hanazawa Rui)