It has been a year since Kyoai Gakuen University concluded academic exchange agreement with University of Veliko Tarnovo. Kyoai Gakuen University invited a former sumo wrestler Koto?sh? oyakata to celebrate the first year anniversary on the 23rd of June, 2014. Koto?sh? oyakata is a former professional Sumo wrestler from the city of Veliko Tarnovo, Bulgaria.