Gintama: Love Incense Arc

Synopsis

Within Yoshiwara's red-light district, the forbidden love incense "Aizen Kou" has resurfaced, causing anyone who inhales it to fall for the first person they see. Once believed to have been eliminated, this potent substance is once again creating chaos within Yoshiwara. Among those affected is Tsukuyo, the cold-hearted captain of the Hyakka. The first individual she lays eyes on after exposure to the incense is Gintoki Sakata, the bold leader of the Yorozuya. Unknown to others, Tsukuyo had already harbored hidden feelings for Gintoki, now amplified by the incense's effects. She must struggle against her sudden infatuation while collaborating with the Yorozuya to restore Yoshiwara to its normal state.