Heartbeat manga 1-4

Source?

I don't think that's the source. I couldn't even find the scene

What manga are images 1/2 and 9/10 from

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[RAYMON] 秘湯・紅葉のぱんぱんスプラッシュ
コミック刺激的SQUIRT！！ Vol.03
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[RAYMON] Hito - koyo no panpan splash
Comic Shigekiteki SQUIRT!! Vol. 03

female:hand_on_heart_(male_to_female)
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[箕山] 戀の病
コミック エグゼ 11
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[miyama] Koi no Yamai
COMIC ExE 11

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[あづま煉] 大人の家出
恋蜜フレグランス
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[Aduma Ren] Oto_na No Iede (Grown-Up Runaway)
Koimitsu Fragrance (A Fragrance Called Love)

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[かいづか] おーばーふろぉ ~挿れたら溢れる姉妹のキモチ~
2話
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[Kaiduka] Overflow ~Iretara Afureru Shimai no Kimo_chi~
Ch.2

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[針金紳士] カミサマラブチューン!
3話
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[Harigane Shinshi] Kamisama Love Tune!
Ch.3

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female:microphone
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[植野メグル] はじめてのギャル
16巻 156話
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[Ueno Meguru] Hajimete no Gal (Gya_ru)
Vol.16 Ch.156
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[우에노 메구루] 첫 갸루
16권 156화

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male:hug
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[三九] 彼氏の隣でイッてみる？～女子大生ハメられスポーツジム
5巻 (完全版)
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[Sanku] Kareshi no Tonari de Itte miru?~ Joshidaisei Hame rare Sports Gym
Vol.5 (Kanzenban)
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[산쿠] 헬스장에서 불끈불끈, 남친 몰래 젖어버려
웹툰판 15화

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[可児いとう] 高慢令嬢は処女に憂う～鈍感上司がこの私の溺愛に気付きません！
1話
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[Kani Itou] Kouman Rei_jou wa Shou_jo ni Ureu - Donkan Joushi ga Kono Watashi no Dekiai ni Kizukimasen!
Ch.1 (Webtoon Ch.3)
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[카니 이토] 오만한 아가씨는 처녀인 것이 불만이다
웹툰판 3화

[토오야마 에마] 이세계에서 최강마왕의 아이들 10명의 엄마가 돼버렸습니다
5권 17화

[Toyama Ema] Isekai de Saikyou Maou no Kodo_mo-tachi Juu_nin no Ma_ma ni nacchaimashita.
Vol.5 Ch.17

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[远山えま] 異世界で最強魔王の子供達10人のママになっちゃいました。
5巻 17話
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[Toyama Ema] Isekai de Saikyou Maou no Kodo_mo-tachi Juu_nin no Ma_ma ni nacchaimashita.
Vol.5 Ch.17
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[토오야마 에마] 이세계에서 최강마왕의 아이들 10명의 엄마가 돼버렸습니다
5권 17화

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[ひんでんブルグ] 夜の診斷室
悦楽の肉壷
イケナイ関係
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[Hindenburg] Yoru no shindan shitsu
Etsuraku no Nikutsubo
Ikenai Kankei

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female:not_mentioned
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[奥ヴぁ] 戦士ちゃんと触手くん
3話
COMIC 外楽 Vol.14
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[Okuva] Senshi-chan to Shokushu-kun
Ch.3
COMIC GAIRA Vol. 14

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[吉飛雄馬(Yoshi Hyuma)] Spring UP!
COMIC 快楽天ビースト 2012年12月号
COMIC Kairakuten BEAST 2012-12

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[小林王桂] 生殖のススメ
ネイキッド☆ガー_ル
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[Kobayashi Oukei] Seishoku No Susume
Na_ked Gi_rl

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male:guided_breast_grab
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[カメーリエ] 親潮のケッコン初夜
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[Kamelie] Oyashio no Kekkon Shoya

[Tsuruta Bungaku] Soutaisei
COMIC Koh 2017-11

[Tsuruta Bungaku] Otoshigoro
Kakure Koto
COMIC Koh Vol.3

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[鶴田文学] オトシゴロ
カクレコト
COMIC 高 Vol.3
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[Tsuruta Bungaku] Otoshigoro
Kakure Koto
COMIC Koh Vol.3

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[蒼空道] ミュセルとらぶらぶHがしたいっ!!
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[Aozoramichi] Myucel to Love Love H ga Shitai!!

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[加瀬大輝] 予言鵜呑み少女現る
むにゅっ娘☆Hiスクール
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[Kase Daiki] Yogen Unomi Shoujo Arawaru
Munyukko H_i Sc_hool

[Ponkotsu Works] Blind Ecchi! SideA

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[ぽんこつわーくす] ぶらいんどえっち！SideA
ギリギリ純愛白書 (仮)
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[Ponkotsu Works] Blind Ecchi!
Girigiri Junai-Hakusho (Kari)

종이책만 정발되었고 이미 한참 전에 절판된 상태입니다.

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[有村しのぶ] SPRITE スプライト
3巻 Vol.1(18話)
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[Arimura Shinobu] Sprite
Vol.3 Ch.18 (called "Vol.1" again)
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[아리무라 시노부] 스프라이트
3권 Vol.1(18화)

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[月吉ヒロキ] 少女達の茶道ism
2話
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[Tsukiyoshi Hiroki] Shoujo-tachi no Sa_dism
ch.2

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[ReDrop] ナツコイ♡ (Natsu Koi)

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[大瀧一文] こっちに恋こい
春恋恋花
コミックゼロエクス Vol.29 2010年5月号
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[Ootaki Kazufumi] Kocchi ni Renkoi
Harukoi Renka
COMIC 0EX Vol. 29 2010-05

female:visible_heartbeat
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[こんちき] 走れおんなのこ
COMIC 華漫 2015年2月号
私えっちですよ?
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[Konchiki] Hashire onna no ko
COMIC Hanaman 2015-02
Watashi Ecchi Desu yo?

Will be uploaded later.
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female:visible_heartbeat
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[こんちき] 走れおんなのこ
COMIC 華漫 2015年2月号
私えっちですよ?
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[Konchiki] Hashire onna no ko
COMIC Hanaman 2015-02
Watashi Ecchi Desu yo?

female:guided_breast_grab
female:mention
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[ラサハン / kt60] 食べるだけでレベルアップ! ~駄女神といっしょに異世界無双~
2巻 7話
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[Rasahan / kt60] Taberu dake de Level-Up! ~Damegami to Issho ni Isekai Musou~
Level Up Just by Eating! ~I’m Peerless in Another World with a Useless Goddess~
Vol.2 Ch.7
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[라사한 / kt60] 먹는 것 만으로 레벨업 ~엉터리 여신과 함께 이세계 무쌍~
2권 7화

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female:faint
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female:hug
female:mention

[TATSUBON] Tadokoro-san
Vol.3 Ch.66

[TATSUBON] Tadokoro-san
Vol.3 Ch.65

[TATSUBON] Tadokoro-san
Vol.3 Ch.64

[TATSUBON] 田所さん
3巻 66話
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[TATSUBON] Tadokoro-san
Vol.3 Ch.66
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[타츠본] 타도코로양
3권 66화

[TATSUBON] 田所さん
3巻 65話
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[TATSUBON] Tadokoro-san
Vol.3 Ch.65
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[타츠본] 타도코로양
3권 65화

[TATSUBON] 田所さん
3巻 64話
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[TATSUBON] Tadokoro-san
Vol.3 Ch.64
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[타츠본] 타도코로양
3권 64화

[TATSUBON] 田所さん
2巻 33話
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[TATSUBON] Tadokoro-san
Vol.2 Ch.33
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[타츠본] 타도코로양
2권 33화

[久世蘭] 黒岩メダカに私の可愛いが通じない
2巻 9話
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[Kuze Ran] Kuroiwa_Medaka_ni_Watashi_no_Kawaii_ga_Tsuujinai
My Charms Are Wasted On Kuroiwa Medaka
Vol.2 Ch.9
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[쿠제 란] 쿠로이와 메다카에게 내 귀여움이 통하지 않아
2권 9화

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female:hug
female:mention
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female:hug
female:mention

[詩原ヒロ] ナイショの戸黒さん
2巻 7話
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[Shibara_Hiro] Naisho no Toguro-san
Vol.2 Ch.7

[吉田鳶牡] ポコチンから花粉
COMIC Shigekiteki SQUIRT!! Vol. 09
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[Yoshida_Tobio] Pokochin_Kara_Kafun
コミック刺激的SQUIRT!! Vol.09

I can't believe it takes a day for the images to be uploaded.

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female:mention

[宮越良月] 約束
コミックメガストア 2011年1月号
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[Miyagoe Ryougetsu] Yakusoku
COMIC Megastore 2011-01

おもちかえり
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Omochikaeri

female:mention

both:hug
male:mention
..

[楝蛙] なつあそび
COMIC 快楽天 2020年9月号
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[Ouchi Kaeru] Natsu Asobi
COMIC Kairakuten 2020-09

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female:mention
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[東條土筆] 背中を押されて
COMIC BAVEL 2021年7月号
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[Toujou Tsukushi] Senaka o osarete
COMIC BAVEL 2021-07

both:hug
male:mention

[ムラタコウジ] だぶるぷれい
1巻 6話
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[Murata Kouji] Double Play
Vol.1 Ch.6
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[무라타 코우지] 더블플레이
1권 6화

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female:mention

[あまくち少女 (うまくち醤油)] 時雨ベッドウェッタ2
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[Amakuchi Syoujo (Umakuchi Syouyu)] Shigure Bedwetter 2