Honey so sweet

Starting their second year of high school, Onise gets placed in a class separate from all of his friends. Now that Nishigaki and his younger twin sister, Miyabi, has joined the school, Onise feels it his duty to mentor Miyabi to overcome her poor conversation skills. One day, Miyabi asks Nao, Onise's girlfriend, what love is and Nao worries she has a competitor.