In 2023, Loafer released their highly anticipated new song "Lefty". Bassist Tanabe composed for the first time, injecting a fresh new sound into Loafer's usual repertoire. The song focuses on the inner struggles of a boy who usually goes unnoticed in the corner of a classroom. The contrast between the youthful, refreshing pop sound and the melancholic lyrics written by Mizumura creates a unique world view that is characteristic of Loafer. It is a memorable song of youth that resonates with anyone, not just middle and high school students.