is the first single by the group Kaoru to Tomoki, Tamani Mook, released on 25 May 2011 by Universal Music.

[2] This group is specially formed for the Fuji Television television drama series Marumo no Okite, and consists of actor Fuku Suzuki and actress Mana Ashida, both of whom are the lead stars in the drama series.

fourth in the top downloaded singles from the Chaku-Uta pay chart ranking in the first half of 2011.

[10][11] On 16 August 2011, Oricon reported that this singles managed to remain in the top 10 list for 12 weeks in a row.

[12] The previous record set by the 2007 song Gake no Ue no Ponyo, the theme song of the Studio Ghibli film Ponyo, which remained on the charts for 11 consecutive weeks in 2008.