Title: One-Week Family
Ren Fujimaru is an up-and-coming actor. He's desperate for his next great role so he isn't forever pigeonholed in his previous big job, but the next role works directly alongside a child actor, and Ren hates children. Ren wants to nail this job, and he's willing to do anything to do it. His manager suggests living with the child actor and his manager for a week to grow more comfortable with each other. Ren isn't excited about the opportunity, but again, if this is what it takes to kill the gig, he will do it.
Not long after agreeing, he is introduced to his costar, Yuu Kusaka. Yuu is the child of the current CEO, and it's clear by his quiet and composed demeanor, which Ren would usually be thankful for, that he has been trained for this industry. But Ren is more disturbed than anything, especially as Yuu opens up and reveals how much he craves attention and interaction. While this relationship was set up for Ren's benefit, Ren quickly changes the purpose of this setup to make Yuu's life a bit more enjoyable overall.
All the while Ren is working with Yuu and getting to know him, he is growing closer and closer to Yuu's manager Kei Haruo, which makes all of this effort worth it on its own. As it turns out, Kei is Ren's whole reason and purpose for acting. When Ren was a child, he saw Kei receiving an award as a prolific child actor, and from that moment on, Ren desperately wanted to be an actor and join Kei in his success. But Kei left just as Ren was getting a foothold in the industry. Now that Ren has this opportunity, he wants to find out all he can about his acting idol Kei and tear down the wall he's put up around himself.