There exists a secret group that makes big money through compensated dating, known as 'Sweet Angels.' Its true nature remains unclear. The local Black Lion Society, which has been ravaged, aims to dismantle the prostitution organization and captures one suspicious individual after another for interrogations, or rather, training sessions. Amidst the wide-reaching net of the Black Lion Society, Natsu, worried about the safety of her missing Sweet Angels comrades, obtains information and infiltrates the Black Lion Society's hideout...
