Childhood friends Chiaki and Kazuma have always felt like brothers, but as they grow older, their relationship begins to change. When Chiaki spends the night at Kazuma's, Kazuma wakes up to strange noises next to him and notices Chiaki touching himself under the covers. He helps Chiaki with his nightly activities; Kazuma's touches confuse but excite Chiaki at the same time. They soon realize their true feelings for each other and often touch each other as if it were an exciting game...

• In the 1st edition: Poster

Put the backs of the posters from Let's Be a Family, Let's Be Together and Let's Be Together – Night and Day together to make one giant poster!