• Time goes by - Koumi Hayasaka - 2022-01-26
• Same mistakes - Koumi Hayasaka - 2019-11-20
• Up all night - Koumi Hayasaka - 2019-06-17
• Deep breath - Koumi Hayasaka - 2019-05-20
• Brand new days - Koumi Hayasaka - 2019-04-15
• No need to rush - Koumi Hayasaka - 2019-01-30
• Say good bye - Koumi Hayasaka - 2019-01-14
• All I need - Koumi Hayasaka - 2018-03-07
• Don't be afraid - Koumi Hayasaka - 2018-03-07
• Peaceful world - Koumi Hayasaka - 2017-08-09
• So beautifully - Koumi Hayasaka・Mimori Tominaga - 2016-09-28
• Precious - Koumi Hayasaka・Mimori Tominaga - 2015-10-28