http://www.tbs.co.jp/papa-musume7/Sypnosis from
DramaWiki:
This home comedy tells the story of Kyoichiro (Tachi Hiroshi) and his teenage daughter Koume (Aragaki Yui). One day, the two ride a train together after visiting Kyoichiro's mother-in-law. He sees it as a chance to get to know his daughter better, but he ends up getting more than that - by some mysterious force, both Kyoichiro and Koume end up with their mind in the other's body! Unfortunately, they have no choice but to swap lives, pretending to be each other at school and work.
Cast:
Tachi Hiroshi as Kawahara Kyoichiro
Aragaki Yui as Kawahara Koume
Kato Shigeaki as Osugi Kenta
Morita Ayaka as Nakayama Ritsuko
Yashima Norito as Nakajima Kokai
Sada Mayumi as Nishino Wakako
Asou Yumi as Kawahara Rieko
Sasaki Sumie as Kokueda Hisoka
Emori Toru as Watanabe Takeshi
Natsuko as Hirata Saori
Takada Nobuhiko as Sakuragi Shinichi
Imai Rika as Shiina Kanako
Takayama Yuuko as Takagi Mika
Owada Kensuke as Ozeki Tomohiro
Kaneko Kenji as Maeda Koichi
Miyashita Yuji as Mifune Wataru
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It looked really nice! The first episode was crack~ I seriously recommend this drama not just for the cast~