japan lodged a protest saying takeshima is part of its territory. since his visit, more japanese have joined demonstrations. they shout discriminatory comments. this gathering happened shortly after tokyo won its bid to host the 2020 olympic games. the olympics bring together people of different nationalities and ethnicities. >> translator: i wonder why people took part in the rally when others celebrated tokyo's successful bid. i also wonder what people around the world will think of it. >> reporter: his concerns about worsening relations prompted him to take part in a festival last weekend in tokyo. about 50,000 people attended the annual cultural exchange. >> translator: bilateral tie also becomeven chillier if there arno exchang. i welce this kind of event. >> reporter: he demonstrated a south korean dish for the opening ceremony. this is a south korean dish which is rice mixed with seasoned vegetables. it's fop popular in japan. the bowl contains enough for 100 servings. this dish symbolizing the mixing together oboth countries to create a stro