Ichiban no Takaramono ~Yui final ver.~ (一番の宝物 ~Yui final ver.~)

"Ichiban no Takaramono ~Yui final ver.~ (一番の宝物 ~Yui final ver.~)" is the second ending theme of the 2010 television anime Angel Beats!, which P.A. Works produced. Girls Dead Monster feat. LiSA performs the song, linking the series' in-story band with LiSA's vocals for Yui's songs.

Key Sounds Label released it as the single "Ichiban no Takaramono ~Yui final ver.~" on 8 December 2010, and the song also appeared on the 2010 Girls Dead Monster album "Keep The Beats!". Although Girls Dead Monster is a fictional band from Angel Beats!, its music received commercial CD releases during the anime's 2010 campaign. 麻枝准 wrote the lyrics and composed the song, and 安斉孝秋 arranged it.