Boku no Kokoro no Yabai Yatsu - Vol. 12 Ch. 156.1 - Twitter Extras

[MangaDex]

 

[AnOchinChin]

Beautiful. Cant wait for the series to end with their wedding

 

[Spoopa]

All of their gifts to each other

 

[andrybak]

Chapters and pages corresponding to when each object on the image appeared in the manga:

• ch. 48, p. 4 – scarf
• ch. 51, p. 6 – Akita dog keychains, aka "straps"
• ch. 74, p. 6 – cupcake
• ch. 89, p. 9 – cupcake
• ch. 89, p. 11 – bracelet with a bone decoration
• ch. 100, p. 8 – wallet chain
• ch. 110, p. 1 – fox mask
• ch. 126, p. 10 – lyrics of the song "Moving Forward"
• ch. 144, p. 11 – lipstick

P.S. shout out to the BokuYaba Wiki, which made finding all of these much easier.

 

[Hikineet]

Thanks for the chapter.

 

[VerticalVectors]

How is that a middle schooler

 

[andrybak]

How is that a middle schooler

1. The extra chapters are often out of the continuity of the main story, so it might be showing them in the future.
2. The naming of the Japanese levels of school is a bit weird, and mapping to other schooling systems isn't exact. At the moment they are in third (last) year of "Junior High". Yamada has just turned 15 in chapters 143-144.

 

[wallsg]

1. The extra chapters are often out of the continuity of the main story, so it might be showing them in the future.
2. The naming of the Japanese levels of school is a bit weird, and mapping to other schooling systems isn't exact. At the moment they are in third (last) year of "Junior High". Yamada has just turned 15 in chapters 143-144.

(I meant to make a quick comment and instead posted a presentation. Sigh.)

It's especially difficult to map because while Japan has a standardized school system in the US things are managed by the state and local government. Also it appears (from me looking up verification data) that in Japanese Middle School vs Junior High may just be a translation issue. Google Translate gives the same Japanese word for both English terms: 中学校 or Chūgakkō. Going the other way it says "Junior high school".

What I experienced I'll call "US 1" in the table and then a couple of variations that I have heard about. I don't know if the 3-year US high schools call 10th graders Freshmen or Sophomores. I'm going with Sophomore being the skipped term because there's no right answer and I've never liked the word anyway (because "sophomoric" is used as a slur).

Elem = Elementary
MS = Middle School (I'm using this term only for 3-year schools)
JHS = Junior High School (I'm using this term only for 2-year schools, but sometimes MS is used)
HS = High School

Grade​	Age​	Japan​	US 1​	US 2​	US 3​
5​	10-11​	Elem	Elem	Elem	Elem
6​	11-12​	Elem	Elem	Elem	MS
7​	12-13​	MS 1st year	JHS	MS	MS
8​	13-14​	MS 2nd year	JHS	MS	MS
9​	14-15​	MS 3rd year	HS Freshman	MS	HS Freshman
10​	15-16​	HS 1st year	HS Sophomore	HS Freshman	HS Sophomore
11​	16-17​	HS 2nd year	HS Junior	HS Junior	HS Junior
12​	17-18​	HS 3rd year	HS Senior	HS Senior	HS Senior

 

[JagdPanther]

(I meant to make a quick comment and instead posted a presentation. Sigh.)

It's especially difficult to map because while Japan has a standardized school system in the US things are managed by the state and local government. Also it appears (from me looking up verification data) that in Japanese Middle School vs Junior High may just be a translation issue. Google Translate gives the same Japanese word for both English terms: 中学校 or Chūgakkō. Going the other way it says "Junior high school".

What I experienced I'll call "US 1" in the table and then a couple of variations that I have heard about. I don't know if the 3-year US high schools call 10th graders Freshmen or Sophomores. I'm going with Sophomore being the skipped term because there's no right answer and I've never liked the word anyway (because "sophomoric" is used as a slur).

Elem = Elementary
MS = Middle School (I'm using this term only for 3-year schools)
JHS = Junior High School (I'm using this term only for 2-year schools, but sometimes MS is used)
HS = High School

Grade​	Age​	Japan​	US 1​	US 2​	US 3​
5​	10-11​	Elem	Elem	Elem	Elem
6​	11-12​	Elem	Elem	Elem	MS
7​	12-13​	MS 1st year	JHS	MS	MS
8​	13-14​	MS 2nd year	JHS	MS	MS
9​	14-15​	MS 3rd year	HS Freshman	MS	HS Freshman
10​	15-16​	HS 1st year	HS Sophomore	HS Freshman	HS Sophomore
11​	16-17​	HS 2nd year	HS Junior	HS Junior	HS Junior
12​	17-18​	HS 3rd year	HS Senior	HS Senior	HS Senior

I've never heard of US 2. That just sounds... weird.

Personally, I went through what you list as US 3. Sort of. It technically wasn't called that because I went to Catholic school 1st through 8th, and each of the 3 schools I went to (we moved twice) all had 1st through 8th in the same school, unlike a public school system where they're often separate schools. I moved into the public system for high school (9th-12th).