Shouri Shibuya (渋谷勝利 Shibuya Shouri) is Yuuri's older brother who goes to Hitotsubashi University. He is very protective of Yuuri. He is Bob's successor to be the Maou of Earth. When he was younger, he met Bob who rescued Yuuri and him from some bullies. While initially despising his parents for having an argument, he also resented the fact that Yuuri will have to go to Shin Makoku eventually. Bob explained to him that that would happen in the future, and so Shouri was contented being with Yuuri for the time being. Shouri wanted Yuuri to call him "Onii-chan" but Yuuri refused to and became more independent when he went to elementary school. Shouri communicates regularly with Bob, who, he complains, emphasizes his age more than anything else.