Summary: Two short stories by Kaneko Aru Himitsu to Mitsumete: "I will treasure this forever" - classmates Hina and Mitsuki are secretly dating. Hina wants to have the popular Mitsuki all to herself, as a present she gave Mitsuki and herself matching keystraps. When Mitsuki touched the keystrap, she felt something hard within it. This is... a wiretap!? Kawarukoto: Months and years pass by and various things change between them. But, some things didn't change. A story of two students who are childhood friends.