O.T.T.O Hut

"Home and charging dock for Mastar Builder's lastest invention! Once fully upgraded, O.T.T.O become an additional builder in Buildr Base and enables the Master Builder freely travel between two villages!"

Trivia

 * O.T.T.O is the second builder in Builder Base.
 * It can be unlocked by special quests by 5 times. Once O.T.T.O unlocked, Master Village Hut in the Home Village unlocks by free.