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

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 king, 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 albums ''Wonderful★Opportunity! vol.07 and WAN★OPO! THE BEST OF BEST!!''.