Seasons & Episodes
EP 1
Episode 1
Three boys are investigating a ruins of the old fortress during summer vacations.
EP 2
Episode 2
Three boys are investigating a ruins of the old fortress during summer vacations.
EP 3
Episode 3
Three boys are investigating a ruins of the old fortress during summer vacations.
EP 4
Episode 4
Three boys are investigating a ruins of the old fortress during summer vacations.
EP 5
Episode 5
Three boys are investigating a ruins of the old fortress during summer vacations.
EP 6
Episode 6
Three boys are investigating a ruins of the old fortress during summer vacations.
EP 7
Episode 7
Three boys are investigating a ruins of the old fortress during summer vacations.
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