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This manga consists of oneshots that are loosely connected with each other.

Chapters 1 and 3 focus on the new relationship between Shiba, a high-school student, and his teacher Onosaka. Things are not going well -- sensei has an inferiority complex because Shiba likes large-breasted girls.

Chapters 2 and 4 are about Inuo (a friend of Shiba's, who's quite the player with girls) and Natsuda, a boy with whom he finds himself in a love hotel the morning after a wild party. Inuo would just like to forget everything because he's definitely not gay, but Natsuda wants to be his friend so badly that he can't turn him down. Natsuda turns out to be a cheerful and engaging companion, and Inuo starts to spend more and more time with him, going to movies and hanging out. But when he finds himself embracing Natsuda again, he pushes him away -- because he's definitely not gay!

Chapter 5 introduces Shiba's brother Keisuke and his friend Aki. Aki wants to do more than kiss, but Keisuke only went along with the kissing because it was Aki who asked him. So now that summer break has arrived he avoids Aki. But when Aki stops calling and avoids him in turn, he's not happy at all.

Chapter 6 is an unconnected oneshot called Yasashii Kuchibiru (Gentle Lips). Yuki and Kaneda are childhood friends, neighbours, and more, but Yuki never seems to have time for Kaneda.

Chapter Extra: Secrets of a youth Kei and Aki three years later and now in high-school dealing with some "growing pains".


Related Series

Associated Names
Secrets of a Youth
Shishunki no Himitsu
Tsu yo ga ri & Hidari mune wa Romanticist
Tsuyogari & Hidarimune wa Romanticist
Tsuyogari (NEKOTA Yonezou)
Yasashii Kuchibiru

Groups Scanlating

Latest Release(s)
v.1 c.Extra by Nakama over 8 years ago
c.Oneshot by Moya over 11 years ago
v.1 c.1-6 by Hochuuami & Nakama over 13 years ago
Search for all releases of this series

Status in Country of Origin
1 Volume (Complete)
- Re-print 2008/4/1

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 7.8 / 10.0 (417 votes)
Bayesian Average: 7.71 / 10.0
 18% (76 votes)
 17% (69 votes)
 29% (120 votes)
 16% (66 votes)
 10% (42 votes)
 6% (23 votes)
 1% (4 votes)
 2% (7 votes)
 1% (3 votes)
 2% (7 votes)

Last Updated
September 15th 2016, 8:07pm PST



Category Recommendations





Original Publisher
Biblos (2003)
Libre Shuppan (2008)

Serialized In (magazine)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #734 increased(+43)
Monthly Pos #1149 increased(+525)
3 Month Pos #2210 increased(+878)
6 Month Pos #3709 increased(+204)
Year Pos #4171 increased(+176)

List Stats
On 191 reading lists
On 197 wish lists
On 1858 completed lists
On 14 unfinished lists
On 360 custom lists

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User Comments [ Order by time added ]

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Rating: 7.0 / 10.0
by happyliez
January 27th, 2009, 2:52am
Trite but good for a one time read and has really good art.

BTW, I want to congratulate whoever scanlated this for getting the spelling of "definitely" correct. I'm not a grammar nazi or anything, but that one word ALWAYS PISSES ME OFF. :3 Thanks for reading.
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Nothing exceptional   
Rating: N/A
by OmNom
April 17th, 2015, 5:58pm
I remember my first time coming across this manga a few years ago, and it was an absolutely horrid experience, causing me to ignore the author like the plague in a long time. Now that I've had my fair share of BL after years spent on it, I gotta say the manga's actually more tolerable than my first impression, though that's not saying much to be honest. The stories are still the same formula, with typical seme-uke dynamics and characterisations, eg in both the first story and last one-shot, the seme's a douche and the uke's hopelessly pathetic, which is never a good device yet sadly overused a lot of the times. The artwork is also so-so, it's neat and clean, but not very expressive or pretty enough for my taste. I guess the chibis and the humour are the only saving points for me.
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Rating: 9.5 / 10.0
by angelkurisutin
July 29th, 2007, 5:21pm
The couple that made me love the manga wasn't the main one, but rather Natsuda and Inuo. I really loved their characters. Natsuda was just so sweet. However, the stories of the other couples were good too. The sensei was a little immature, but I guess that was just because he was feeling insecure. But all of the stories were cute and funny, and I cracked up at how overprotective Shiba was of his little brother.

... Last updated on June 7th, 2008, 8:41am
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Rating: 3.0 / 10.0
by Himeowchama
February 27th, 2017, 5:57am
Chap 1 and 3 are fine, I guess. It's just that the seme kinda bullies the uke that eventually crosses the line.
Story 2 HAD potential. The story started in chapter 2 anf it was realllyyyy good. However in Chap 4, it was annoying me in the later part when they had sex. I was reallyyyyy annoyed when the seme started to laugh at the uke for walking so weirdly. Like who tf's fault was that? He even skipped school bc of it. He could've been more gentle with the uke after sex, but noooo. He'd rather laugh his butt off bc the uke walks weirdly. Eugh.
Chap 5 comment. I feel like a shotacon if I comment on a kid's lovelife lol.
Chap 6 was idk. I just got sooooo bored (and turned off) that I didn't bother finishing it.
Overall, the manga was eh. I guess it was okay. Some of the uke just looks quite pitiful somehow. And I honestly felt no love from the seme (except in Chap 2, and only in chap 2)

... Last updated on February 27th, 2017, 6:04am
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Rating: 2.0 / 10.0
by Nyajinsky
November 3rd, 2011, 12:38pm
I read it cause it's from the same mangaka as Otona Keikenchi, which I loved.
but this wasn't good at all. especially the first story about a student and teacher, but I guess every manga where the teacher is uke is going to be bad. I didn't like him at all. he was so childish, the second couple was better but not great. and it was just too fast. so if you are reading yaoi just for H scenes, you can go for it. but don't wait a story.

okay, I admit it was cute, but maybe too cute. i mean the second uke (crybaby), and that story about the middle schoolers?? well, just saying.

... Last updated on November 3rd, 2011, 12:41pm
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Rating: 7.3 / 10.0
by Oriolidae
February 5th, 2011, 3:25pm
Haha, everyone in this series is either gay or a woman. That's so cliché. But putting that aside, this is still a good yaoi story. The plot is (not surprisingly) not really that substantial - but the art and the hotness is in good shape, so this is above average in my opinion.

Spoiler (highlight to view)
Onosaka (the sensei) is right; Shiba x Inou would be awesome
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Good read   
Rating: 9.0 / 10.0
by Sakura_Hikizaki
September 6th, 2009, 8:37am
I really enjoyed this with most of this manga ka's work. Over all it was good read but not one of my fave. (as in I won't be re-reading it anytime soon). It was cute and funny reading. I really liked the art work too. Over all I would still recamend this to Yaoi fans to read.
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i found it..   
Rating: 10.0 / 10.0
by Dragoness57yaoi
July 7th, 2009, 9:45pm
it was insanely cute.. i suppose i have a thing for insecure semes.. so this was great for me ;D

the inuoxnatsuda pairing definitely made me curl up and fawn.

it's also enjoyable that the oneshots are connected =]
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Rating: 8.0 / 10.0
by voraciouszest
November 29th, 2008, 5:02pm
Tsuyogari was one of the first Yaoi series I'd ever read and because of that, I will always speak kindly of it. The stories are cute and the characters are interesting. There were only a few things I found disappointing about it though. First of all, it was a little underdeveloped. Secondly, the characters were a little shallow. But most of all, I found it annoying to have the Seme and Uke roles so obvious in character and style.
That being said, I still love Tsuyogari. Chapter Five is my favourite of the volume, probably because it is innocent and the characters aren't so heavily stereotyped.
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Rating: N/A
by torrentchan
July 4th, 2006, 4:03pm
Here is a little info bout the manga for those interested:

Summary: This manga consists of oneshots that is connected with each others. There are 3 couples in total. The first couple (appear in chapter 1) is a teacher and student relationship. The second couple (appear in chapter 2) is about a playboy and shy sensitive boy relationship. The last couple (appear in chapter 5) is about Shiba's (the student) brother and his bestfriend in school. Chapter 6 is a seperate story called "Gentle Lips"
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