That may be something best asked of your parents. 
But yeah, apparently it’s an annual tradition for the Musashino Art University festival. I found this image of one such example on Reddit (though it’s perhaps NSFW, and is marked so on Reddit, so you’ll need to have an account and be logged into it to view).
Clicking that you’re 18 yo is enough! I checked… purely for research purposes of course… 
Oh, really? On my computer, clicking the “I’m 18” button just results in Reddit going “oh yeah? So prove it by logging in”. Maybe it’s a regional thing.
Ah yes, logging in - the impenetrable defense. I remember not being able to log in when I was 17.
Silly Reddit
Week 6: 23日目
Honesty is the best policy, and my truth is I got a little caught up last week and read this weeks chapter too 
Excited to discuss!
Participation Poll:
- I’m reading along!
- I’ve already read this part
- I’m reading this after the book club has finished
- I’m still reading but I haven’t reached this section yet
Chapter 23
I love Yomogi’s friend! Hopefully they will get to see each other more often the once a year 
But if Yomogi wants to laugh more oftennnn she should be around Hiroto more often 
I know, it’s been harder recently to only read one chapter! It’s just so good hehe
It’s not my club, but would everyone be more interested in two chapters a week perhaps? If not, it’s totally fine and I don’t mind sticking to one chapter
Planning to host a reading pace poll in-between volumes - if everyone agrees to up the pace then we can! Agreed though I’m enjoying it a lot!
Week 7: 24日目
Week 7!! I’ll be out of town this week so I read the chapter last night - hope everyone enjoys it! We’re nearing the end of volume three already
Excited to discuss!
Participation Poll:
- I’m reading along!
- I’ve already read this part
- I’m reading this after the book club has finished
- I’m still reading but I haven’t reached this section yet
YEAHHHH, hard agree hahaha
A couple of weeks ago, reading Detective Conan:
Me: “What is this 劫? I don’t know this kanji. Let’s look it up and see if it’s worth learning. Hm, no, seems like something I may never encounter again.”
Just now, reading Hirayasumi:
Me: “What is this 劫? I don’t know this kanji. Let’s look it up and see if it’s worth learning. Hm, no, seems like something I may never encounter again.”
Aww I like that! I didn’t notice that detail at all, thanks!
Week 8: 25日目
Sorry for the late post everyone!! Was out of town this weekend, but excited to keep reading as we near the end of volume 3! It’s moving quick. I’ll be putting up some polls regarding reading pace in the main thread so go check it out if you’re interested!
Excited to discuss!
Participation Poll:
- I’m reading along!
- I’ve already read this part
- I’m reading this after the book club has finished
- I’m still reading but I haven’t reached this section yet
25日目
Hiroto is so mature. Whenever Natsumi takes out her frustration on him, he just takes it in stride. She’s lucky to have someone like him as her guardian while she’s at college. Good on her though for realizing she went too far and apologizing.
Week 9: 26日目
We already made it to the end of 3!! Hope everybody enjoys the final chapter. We’ll be beginning volume 4 next week and upping the pace to 2 chapters a week so make sure to pick up your copy if you haven’t yet!
Excited to discuss!
Participation Poll:
- I’m reading along!
- I’ve already read this part
- I’m reading this after the book club has finished
- I’m still reading but I haven’t reached this section yet
26日目
I like this pairing too!
Love that our main characters are so opposite. It’s like you can see things from two different perspectives.