Well, looks like Chamaji subscribes to the Maribel is Yukari theory, given that she's hiding in the gap between Renko's bed and floor.
I've really done it now...That's right, which is why thought it was only natural I should come and meet you here.Ahh, a spare key, that makes sense.A photo?No, there's something distinctly UN-natural about what you're doing.Except I don't remember ever making one,Actually there's a photo that I wanted to show you, Merry.The Secret Sealing Club Takes a DetourI better call her to tell her I'll be late.Pretty old fashioned, don't you think?Well, my granny took it a long time ago, so.Aw man, I was supposed to meet Merry at 10.RenkoYeah don't worry, you surprised me plenty. Also what are you even doing here?let alone giving one to her.Look at this picture. What do you think about it?These knees look just like yours, Renko.Foreseen"Sorry, I'm running a bit late."... and send.What do you mean? Didn't you want to meet up today?Hm!? This is...!!A Little ShakenI had a hunch.No, I mean what are you doing in my house? The door was locked.But... they're not yours...? Is it someone related to you?Keen EyeI guess I can't blame her since I'm a repeat offender.Yeah, and I have a spare key.Okay, I'm pretty sure that's my granny but that's really not what I meant.Ugh, I really wanted to surprise you with "My name's Merry, and now I'm right beneath your bed~". Messed that one up.