ぼうけんのしょがきえました！ (Bouken no Sho ga Kiemashita!)

のBackground
Prequel: Death Should Not Have Taken Thee

The song follows the plot of a generic RPG game, with Rin playing the role of the queen, and Len playing the role of the hero. The PV is also styled after an RPG game, and contains references to the Dragon Quest series.

It is featured as a track in the album: Wonderful★Opportunity! vol.07.