However, Hiro (Loïc Sho Güntensperger) does not respect Sommer's wish to live a seclusive life.

Sommer leaves Switzerland for the first time in his life and the two travel to Japan and start to develop a strong friendship.

Gnädiger was fascinated by the old Japanese traditions and his ten-year-old co-star Loïc Sho of Swiss-Japanese ancestry.

[7][8] Following the completion of filming in Switzerland and Japan in autumn 2014, Mathias Gnädinger died on 3 April 2015.

While post production work had not yet finished, Tellfilm decided to move up the film's release from 2016 to (late) summer 2015.