Preparations for the school's festival are moving in. Usagi invites Seiya over, but Yaten and Taiki interrupt upon discovering Chibi Chibi has their princess' incense burner. Sailor Lead Crow, thanks to a diary that Sailor Aluminum Seiren had left behind, identified Usagi and the others as Sailor Guardians, and confronts her at the local school festival. Sailor Lead Crow threatens the lives of bystanders with a black hole. Usagi allows her silver Star Seed to be taken, but Sailor Tin Nyanko attacks Sailor Lead Crow, who drops the black hole, gets sucked in, and dies...