Senku and the kingdom learns of a mysterious disc left behind by his father and the other astronauts. They use their newfound technology to bring it to life.
Digging grooves in glass 
makes it store sound?
حفر الشقوق في الزجاج يجعلها تخزّن الصوت؟
Durch Gravuren im Glas können Töne
also festgehalten werden?
¿Tallar el vidrio permite
guardar sonido?
¿Tallar el vidrio permite
guardar sonido?
Donc le son s’amasse dans les sillons
gravés dans le verre ?
Quindi tracciando dei solchi nel vetro,
 si possono conservare dei suoni?
Cavar sulcos em vidro para 
fazer ele armazenar som?
Значит, звук остаётся в проделанных
в стекле ложбинках?