Watashi Wo Hitorijime Ni Shite summary:

Two short stories by Kaneko Aru1. 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 key straps. When Mitsuki touched the key strap, she felt something hard within it. This is... a wiretap!?2. 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.