In a heartfelt blog post on December 11th, Sarina Ushio of Hinatazaka46 bid farewell to fans following the "Happy Train Tour 2023," marking her last live performance with the group.

Expressing her deep affection for live performances and the special connection with fans, Ushio thanked her fellow members for the surprise flowers and heartfelt words during the event. Despite feeling she may not have contributed outwardly to the group's strength, she expressed joy in being a small part of something meaningful.

Ushio shared her appreciation for the warm and supportive environment within Hinatazaka46, highlighting the kindness of the members and the genuine connections formed. She reflected on the privilege of meeting such wonderful people through the group and emphasized her love for everyone.

In a personal touch, Ushio revealed her journey to becoming an idol, defying parental opposition. She thanked fans for their unwavering support, citing their encouragement as the driving force behind her ability to overcome challenges.

The blog post also touched on Ushio's family, expressing gratitude for their understanding and support throughout her idol journey. She highlighted her happiness in sharing her final moments with them and conveyed her profound appreciation for their patience and care.

Ushio extended her thanks to fans, staff, and those involved in her career, expressing gratitude for the exquisite dress and accessories designed for her final performance. She concluded the post by teasing more stories to share during her upcoming radio broadcast.