Shinyuu Ouji to Koshiginchaku ~Oshi no Ouji ni Kyuukon Sarete Komattemasu~ Manga

親友王子と腰巾着～推しの王子に求婚されて困ってます～ / Best Friend Prince and Right-hand man~ I'm in trouble because I was asked to marry him~ (literal title ) / 절친 왕자와 심복~지지하는 왕자에게 청혼받아 곤란합니다~