In January 2023, his photograph was carried on to the dohyo in the course of stablemate's Toyohibiki danpatsu-shiki to generate a honorary Slash into his hair, completed by Sadanoumi. (there, it functioned akin to an evil version with the Denjin Hadoken). The latter is the very same move he used https://whiskeyeditions.com/product/hibiki-japanese-harmony-ryusui-hyakka-limited-edition-2021/