In May 16, 1912, Mishima departed from Shinbashi Station (present site of Shiodome Station of Japan National Railways) to Stockholm, sent off by his family and members of 'Tengu Club' that was a sports social club he belonged to, and members of 'Tokyo Club' that was an alumni organization of baseball club of Keio Gijuku that he had a relationship through baseball games.
1912年（明治45年）5月16日、家族や、三島が所属していたスポーツ社交団体「天狗倶楽部」や野球試合で縁のある慶應義塾野球部のOB会である「東京倶楽部」のメンバーらが見送るなか、新橋駅（現・汐留駅(国鉄)跡）からストックホルムへと旅立った。