In a 2021 interview on YouTube, his former co-star, Takanori Iwata, who worked with him on a film called The Master Plan, shared that he often found Mackenyu soundly asleep on the floor when he walked onto the set.
巖田孝則曾與他合作過一部名為《總體規劃》的電影、他還說,當他走進片場時,經常發現 Mackenyu 在地板上酣睡。