Nisekoi: False Love, Vol. 16

English teacher Yui has been assigned to take over as...the school music teacher?! She's so tone-deaf her singing makes the students faint, and yet she's been chosen to sing in front of the whole school! Later, Raku and Chitoge are in for a surprise when they meet a princess from a foreign kingdom—who looks exactly like Chitoge! What’s in store when the princess and Chitoge switch places? -- VIZ Media