What makes Angelus by Hitomi Shimatani notable?

'Angelus' marked a notable moment in Shimatani's career, debuting at number 10 on the Oricon charts and solidifying her place within the competitive J-pop landscape. The title track and its accompanying single, 'Z! Z! Z! -Zip! Zap! Zipangu!-', received significant radio play and contributed to her visibility among younger audiences. By 2004, Hitomi Shimatani was solidifying her status in the J-pop scene with 'Angelus,' her fifth studio album. This release followed her successful album 'Love Letter' from 2003, showcasing her growth as an artist and a deeper exploration of thematic elements in her music.