Childhood friends Aoi Satsuki and Arata Uzuki are tasked with producing a fan event as part of a TsukiRadi project. Aoi, the considerate and kind prince of Gravi, selects "adventure" as the event's theme.

Believing adventurousness to be something he lacks, Aoi works extra hard to come up with an event concept with Arata. The answer they arrive at is a puzzle/escape room at the zoo that will give guests a taste of the extraordinary. The younger members take on the role of the guests as they begin rehearsing for the event!
to find hidden treasure in mysterious lands.
لإيجاد كنز خفيّ في أراض غامضة
und verborgene Schätze
an unerforschten Orten zu finden.
en busca de un tesoro oculto
en un recóndito lugar.
en busca de un tesoro oculto
en un lugar recóndito.
à la recherche d’un trésor
dans des contrées inconnues.
per trovare un tesoro nascosto
 in una terra misteriosa.
para encontrar tesouros
escondidos em terras misteriosas.
в поисках спрятанных сокровищ 
таинственных земель.