シングルマザー (Single mom) by SARINA
(Featuring Momoka Eri, also known as Momoeri, former Ageha model)
Momoka Eri divorced her husband for years ago and she had raised her one and only son by herself. Although in the video, the kid is not her real son. You can see she shows alot of emotions and express her sadness, because she knows how it feels to be a single mom.
The MV is really beautiful.