謹(かん)賀(が)新(しん)年(ねん)！

Note: In these lyrics,「瞳(ひとみ)」and「宙(ちゅう)」are read as「目(め)」and「空(そら)」for more emphasis and nuance, which I’ve done my best representing as two layers of furigana. This is to add more nuance to the lyrics and is called 義(ぎ)訓(くん).

This week's challenge is from the lyrics of Crystal Snow (YouTube):