Giotopoulos Serafeim, served in the Hellenic Navy as an Officer in Submarines.

2004  Serafeim Giotopoulos first contact with Aikido and George Koliopoulos Sensei. Participates in his first Aikido seminar with George Koliopoulos Sensei in Larissa Central Greece.

2009 He was tested for Shodan at FukuShinKan dojo Aikido Association of Athens with examiner George Koliopoulos Sensei. He received the instructor Certificate from the Aikido Association of Athens. Serafeim Giotopoulos founded his first Dojo, YuuShinKan dojo at the Cultural Center of Farsala Central Greece.

2011  Serafeim Giotopoulos tested for Nidan at FukuShinKan dojo Aikido Association of Athens with examiner George Koliopoulos Sensei. He was awarded the title of Fukushidoin from the Aikido Association of Athens.

2014  Tested for Sandan at Hellenic Aikido Aikikai with examiner George Koliopoulos Sensei.

2017  Serafeim Giotopoulos traveled to Japan. He has traveled to Iwama where he trained for a week. He visited Tokyo and trained with Doshu at Hobu Dojo. He also visited Kyoto, Cobe, Osaka, Nara, and Sibuya.

2018  Tested for Yodan at Hellenic Aikido Aikikai with George Koliopoulos Sensei.

2022  YuuShinKan dojo made a demonstration of Aikido in Farsala in the presence of the Cultural Attache΄ of the Embassy of Japan.

2022  He sets up the Aikido Iwama sports club.

2008-2024  YuuShinKan Dojo has three Aikido groups according to age.

2024   He was awarded the Shidoin title. During these years, a lot of Aikido Seminars have been organized in YuuShinKan dojo. He has attended many Aikido Seminars with various instructors. Today Serafeim Giotopoulos holds the 5th Dan Aikido Aikikai.