No, it's not a new manga, it's just a story about Celeste. Before she was born, my old neighbors from Louisiana gave us a baby present with a nice, soft lamb/rattle tied to the package. Since she first came home, that lamb has been in Celeste's crib and I always move it so that she can see it when she's lying down. Very early on, when she woke up crying, I started telling Celeste that there was no need to cry when she woke up because Lamba was there, and Lamba helps fight the lonelies.
In general, this is one of those things that I don't think she believes, and I know Evelin doesn't because she will switch the end of the bed Celeste's head is oriented toward without moving Lamba. I always correct this situation as soon as I notice it.
Around 5:00 p.m., as I was finishing things up at the office, I got a call from Evelin. She'd put Celeste down for a nap and she was fussing a bit. Evelin went in to repacify* her and at the same time moved Lamba to be by Celeste's head. Pretty much as soon as Celeste saw Lamba, she gave two more little cries of protest and fell asleep.
Lamba, indeed, helps fight the lonelies.
*Not that we talk about dealing with Celeste in military terms, but we've come to call the sneaking in to stick a pacifier back into her mouth before she wakes up too much a "pacification campaign" and we tend to have to go and repacify her a couple of times during that first hour or so of sleep.