Chay song used as drama theme!
http://mdpr.jp/music/1573445Credit modelpress
The drama is
Japanese: 早子先生, 結婚するって本当ですか?
(Hayako Sensei, Kekkon Surutte Honto desu ka?) [Is Hayako Sensei Really Getting Married?]
Stars Nao Matsushita and co-starring is Shihori Kanjiya. Starts in April on Fuji Television.
The song is 「それでしあわせ」- looking to post when it is available.