>In April 2022, Sakai was reported among the more than three dozen comics creators who contributed to Operation USA's benefit anthology book, Comics for Ukraine: Sunflower Seeds, a project spearheaded by IDW Publishing Special Projects Editor Scott Dunbier, whose profits would be donated to relief efforts for Ukrainian refugees resulting from the February 2022 Russian invasion of Ukraine.[13][14] Sakai's contribution is an original Usagi Yojimbo story in which the main character comes to the aid of refugees fleeing the invasion of their land by a warlord, themes that speak to the events in Ukraine.[15]